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Finding the Fourth Proportional to 10,088.75, 15,088.86 and 8,985.93

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Solution

The fourth proportional to 10,088.75, 15,088.86 and 8,985.93 is: 13,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.75 : 15,088.86 = 8,985.93 : x
  2. Step 2: Convert to fraction form
    10,088.75/15,088.86 = 8,985.93/x
  3. Step 3: Cross multiply
    10,088.75x = 15,088.86 × 8,985.93
  4. Step 4: Simplify right side
    10,088.75x = 135,587,439.74
  5. Step 5: Solve for x
    x = 135,587,439.74/10,088.75
  6. Step 6: Final answer
    x = 13,439.48

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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.