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Finding the Fourth Proportional to 9,068.77, 12,515.13 and 5,090.20

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Solution

The fourth proportional to 9,068.77, 12,515.13 and 5,090.20 is: 7,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,068.77 : 12,515.13 = 5,090.20 : x
  2. Step 2: Convert to fraction form
    9,068.77/12,515.13 = 5,090.20/x
  3. Step 3: Cross multiply
    9,068.77x = 12,515.13 × 5,090.20
  4. Step 4: Simplify right side
    9,068.77x = 63,704,514.73
  5. Step 5: Solve for x
    x = 63,704,514.73/9,068.77
  6. Step 6: Final answer
    x = 7,024.60

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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.