Home / 10,520.66-14,508.78-6,740.12

Finding the Fourth Proportional to 10,520.66, 14,508.78 and 6,740.12

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Solution

The fourth proportional to 10,520.66, 14,508.78 and 6,740.12 is: 9,295.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.66 : 14,508.78 = 6,740.12 : x
  2. Step 2: Convert to fraction form
    10,520.66/14,508.78 = 6,740.12/x
  3. Step 3: Cross multiply
    10,520.66x = 14,508.78 × 6,740.12
  4. Step 4: Simplify right side
    10,520.66x = 97,790,918.25
  5. Step 5: Solve for x
    x = 97,790,918.25/10,520.66
  6. Step 6: Final answer
    x = 9,295.13

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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.