Home / 15,535.53-21,439.01-8,462.00

Finding the Fourth Proportional to 15,535.53, 21,439.01 and 8,462.00

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Solution

The fourth proportional to 15,535.53, 21,439.01 and 8,462.00 is: 11,677.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.53 : 21,439.01 = 8,462.00 : x
  2. Step 2: Convert to fraction form
    15,535.53/21,439.01 = 8,462.00/x
  3. Step 3: Cross multiply
    15,535.53x = 21,439.01 × 8,462.00
  4. Step 4: Simplify right side
    15,535.53x = 181,416,753.11
  5. Step 5: Solve for x
    x = 181,416,753.11/15,535.53
  6. Step 6: Final answer
    x = 11,677.54

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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.