Home / 9,988.58-14,982.71-5,778.15

Finding the Fourth Proportional to 9,988.58, 14,982.71 and 5,778.15

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Solution

The fourth proportional to 9,988.58, 14,982.71 and 5,778.15 is: 8,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.58 : 14,982.71 = 5,778.15 : x
  2. Step 2: Convert to fraction form
    9,988.58/14,982.71 = 5,778.15/x
  3. Step 3: Cross multiply
    9,988.58x = 14,982.71 × 5,778.15
  4. Step 4: Simplify right side
    9,988.58x = 86,572,316.90
  5. Step 5: Solve for x
    x = 86,572,316.90/9,988.58
  6. Step 6: Final answer
    x = 8,667.13

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Similar ratio
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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.