Home / 15,136.29-20,879.44-9,084.92

Finding the Fourth Proportional to 15,136.29, 20,879.44 and 9,084.92

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Solution

The fourth proportional to 15,136.29, 20,879.44 and 9,084.92 is: 12,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.29 : 20,879.44 = 9,084.92 : x
  2. Step 2: Convert to fraction form
    15,136.29/20,879.44 = 9,084.92/x
  3. Step 3: Cross multiply
    15,136.29x = 20,879.44 × 9,084.92
  4. Step 4: Simplify right side
    15,136.29x = 189,688,042.04
  5. Step 5: Solve for x
    x = 189,688,042.04/15,136.29
  6. Step 6: Final answer
    x = 12,532.00

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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.