Home / 12,388.16-17,095.04-6,722.76

Finding the Fourth Proportional to 12,388.16, 17,095.04 and 6,722.76

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Solution

The fourth proportional to 12,388.16, 17,095.04 and 6,722.76 is: 9,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.16 : 17,095.04 = 6,722.76 : x
  2. Step 2: Convert to fraction form
    12,388.16/17,095.04 = 6,722.76/x
  3. Step 3: Cross multiply
    12,388.16x = 17,095.04 × 6,722.76
  4. Step 4: Simplify right side
    12,388.16x = 114,925,851.11
  5. Step 5: Solve for x
    x = 114,925,851.11/12,388.16
  6. Step 6: Final answer
    x = 9,277.07

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Half scale
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Double scale
Find fourth proportional to 12,389.16, 17,096.42 and 6,723.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.