Home / 11,989.14-16,555.46-7,520.57

Finding the Fourth Proportional to 11,989.14, 16,555.46 and 7,520.57

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Solution

The fourth proportional to 11,989.14, 16,555.46 and 7,520.57 is: 10,384.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.14 : 16,555.46 = 7,520.57 : x
  2. Step 2: Convert to fraction form
    11,989.14/16,555.46 = 7,520.57/x
  3. Step 3: Cross multiply
    11,989.14x = 16,555.46 × 7,520.57
  4. Step 4: Simplify right side
    11,989.14x = 124,506,437.52
  5. Step 5: Solve for x
    x = 124,506,437.52/11,989.14
  6. Step 6: Final answer
    x = 10,384.94

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Double scale
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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.