Home / 15,484.76-21,369.44-9,111.84

Finding the Fourth Proportional to 15,484.76, 21,369.44 and 9,111.84

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Solution

The fourth proportional to 15,484.76, 21,369.44 and 9,111.84 is: 12,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.76 : 21,369.44 = 9,111.84 : x
  2. Step 2: Convert to fraction form
    15,484.76/21,369.44 = 9,111.84/x
  3. Step 3: Cross multiply
    15,484.76x = 21,369.44 × 9,111.84
  4. Step 4: Simplify right side
    15,484.76x = 194,714,918.17
  5. Step 5: Solve for x
    x = 194,714,918.17/15,484.76
  6. Step 6: Final answer
    x = 12,574.62

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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.