Home / 15,526.59-21,426.68-8,453.01

Finding the Fourth Proportional to 15,526.59, 21,426.68 and 8,453.01

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Solution

The fourth proportional to 15,526.59, 21,426.68 and 8,453.01 is: 11,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.59 : 21,426.68 = 8,453.01 : x
  2. Step 2: Convert to fraction form
    15,526.59/21,426.68 = 8,453.01/x
  3. Step 3: Cross multiply
    15,526.59x = 21,426.68 × 8,453.01
  4. Step 4: Simplify right side
    15,526.59x = 181,119,940.31
  5. Step 5: Solve for x
    x = 181,119,940.31/15,526.59
  6. Step 6: Final answer
    x = 11,665.15

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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.