Home / 15,039.81-20,757.47-8,755.83

Finding the Fourth Proportional to 15,039.81, 20,757.47 and 8,755.83

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Solution

The fourth proportional to 15,039.81, 20,757.47 and 8,755.83 is: 12,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.81 : 20,757.47 = 8,755.83 : x
  2. Step 2: Convert to fraction form
    15,039.81/20,757.47 = 8,755.83/x
  3. Step 3: Cross multiply
    15,039.81x = 20,757.47 × 8,755.83
  4. Step 4: Simplify right side
    15,039.81x = 181,748,834.77
  5. Step 5: Solve for x
    x = 181,748,834.77/15,039.81
  6. Step 6: Final answer
    x = 12,084.52

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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.