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Finding the Fourth Proportional to 8,987.88, 13,504.50 and 5,702.52

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Solution

The fourth proportional to 8,987.88, 13,504.50 and 5,702.52 is: 8,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.88 : 13,504.50 = 5,702.52 : x
  2. Step 2: Convert to fraction form
    8,987.88/13,504.50 = 5,702.52/x
  3. Step 3: Cross multiply
    8,987.88x = 13,504.50 × 5,702.52
  4. Step 4: Simplify right side
    8,987.88x = 77,009,681.34
  5. Step 5: Solve for x
    x = 77,009,681.34/8,987.88
  6. Step 6: Final answer
    x = 8,568.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.