Home / 15,499.52-21,389.28-8,426.24

Finding the Fourth Proportional to 15,499.52, 21,389.28 and 8,426.24

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Solution

The fourth proportional to 15,499.52, 21,389.28 and 8,426.24 is: 11,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.52 : 21,389.28 = 8,426.24 : x
  2. Step 2: Convert to fraction form
    15,499.52/21,389.28 = 8,426.24/x
  3. Step 3: Cross multiply
    15,499.52x = 21,389.28 × 8,426.24
  4. Step 4: Simplify right side
    15,499.52x = 180,231,206.71
  5. Step 5: Solve for x
    x = 180,231,206.71/15,499.52
  6. Step 6: Final answer
    x = 11,628.18

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