Home / 10,988.50-15,164.14-6,272.68

Finding the Fourth Proportional to 10,988.50, 15,164.14 and 6,272.68

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Solution

The fourth proportional to 10,988.50, 15,164.14 and 6,272.68 is: 8,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.50 : 15,164.14 = 6,272.68 : x
  2. Step 2: Convert to fraction form
    10,988.50/15,164.14 = 6,272.68/x
  3. Step 3: Cross multiply
    10,988.50x = 15,164.14 × 6,272.68
  4. Step 4: Simplify right side
    10,988.50x = 95,119,797.70
  5. Step 5: Solve for x
    x = 95,119,797.70/10,988.50
  6. Step 6: Final answer
    x = 8,656.30

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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.