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Finding the Fourth Proportional to 8,572.61, 11,832.59 and 4,988.26

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Solution

The fourth proportional to 8,572.61, 11,832.59 and 4,988.26 is: 6,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.61 : 11,832.59 = 4,988.26 : x
  2. Step 2: Convert to fraction form
    8,572.61/11,832.59 = 4,988.26/x
  3. Step 3: Cross multiply
    8,572.61x = 11,832.59 × 4,988.26
  4. Step 4: Simplify right side
    8,572.61x = 59,024,040.03
  5. Step 5: Solve for x
    x = 59,024,040.03/8,572.61
  6. Step 6: Final answer
    x = 6,885.19

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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.