Home / 7,386.40-11,086.08-4,103.20

Finding the Fourth Proportional to 7,386.40, 11,086.08 and 4,103.20

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Solution

The fourth proportional to 7,386.40, 11,086.08 and 4,103.20 is: 6,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.40 : 11,086.08 = 4,103.20 : x
  2. Step 2: Convert to fraction form
    7,386.40/11,086.08 = 4,103.20/x
  3. Step 3: Cross multiply
    7,386.40x = 11,086.08 × 4,103.20
  4. Step 4: Simplify right side
    7,386.40x = 45,488,403.46
  5. Step 5: Solve for x
    x = 45,488,403.46/7,386.40
  6. Step 6: Final answer
    x = 6,158.40

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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.