Home / 13,557.99-20,349.15-11,350.65

Finding the Fourth Proportional to 13,557.99, 20,349.15 and 11,350.65

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Solution

The fourth proportional to 13,557.99, 20,349.15 and 11,350.65 is: 17,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.99 : 20,349.15 = 11,350.65 : x
  2. Step 2: Convert to fraction form
    13,557.99/20,349.15 = 11,350.65/x
  3. Step 3: Cross multiply
    13,557.99x = 20,349.15 × 11,350.65
  4. Step 4: Simplify right side
    13,557.99x = 230,976,079.45
  5. Step 5: Solve for x
    x = 230,976,079.45/13,557.99
  6. Step 6: Final answer
    x = 17,036.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.