Home / 15,477.04-21,342.16-9,188.20

Finding the Fourth Proportional to 15,477.04, 21,342.16 and 9,188.20

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Solution

The fourth proportional to 15,477.04, 21,342.16 and 9,188.20 is: 12,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.04 : 21,342.16 = 9,188.20 : x
  2. Step 2: Convert to fraction form
    15,477.04/21,342.16 = 9,188.20/x
  3. Step 3: Cross multiply
    15,477.04x = 21,342.16 × 9,188.20
  4. Step 4: Simplify right side
    15,477.04x = 196,096,034.51
  5. Step 5: Solve for x
    x = 196,096,034.51/15,477.04
  6. Step 6: Final answer
    x = 12,670.13

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Half scale
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Double scale
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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.