Home / 9,343.20-14,014.80-9,278.40

Finding the Fourth Proportional to 9,343.20, 14,014.80 and 9,278.40

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Solution

The fourth proportional to 9,343.20, 14,014.80 and 9,278.40 is: 13,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.20 : 14,014.80 = 9,278.40 : x
  2. Step 2: Convert to fraction form
    9,343.20/14,014.80 = 9,278.40/x
  3. Step 3: Cross multiply
    9,343.20x = 14,014.80 × 9,278.40
  4. Step 4: Simplify right side
    9,343.20x = 130,034,920.32
  5. Step 5: Solve for x
    x = 130,034,920.32/9,343.20
  6. Step 6: Final answer
    x = 13,917.60

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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.