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Finding the Fourth Proportional to 9,008.10, 12,430.62 and 5,029.11

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Solution

The fourth proportional to 9,008.10, 12,430.62 and 5,029.11 is: 6,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.10 : 12,430.62 = 5,029.11 : x
  2. Step 2: Convert to fraction form
    9,008.10/12,430.62 = 5,029.11/x
  3. Step 3: Cross multiply
    9,008.10x = 12,430.62 × 5,029.11
  4. Step 4: Simplify right side
    9,008.10x = 62,514,955.35
  5. Step 5: Solve for x
    x = 62,514,955.35/9,008.10
  6. Step 6: Final answer
    x = 6,939.86

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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.