Home / 11,337.60-15,646.88-6,623.40

Finding the Fourth Proportional to 11,337.60, 15,646.88 and 6,623.40

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Solution

The fourth proportional to 11,337.60, 15,646.88 and 6,623.40 is: 9,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.60 : 15,646.88 = 6,623.40 : x
  2. Step 2: Convert to fraction form
    11,337.60/15,646.88 = 6,623.40/x
  3. Step 3: Cross multiply
    11,337.60x = 15,646.88 × 6,623.40
  4. Step 4: Simplify right side
    11,337.60x = 103,635,544.99
  5. Step 5: Solve for x
    x = 103,635,544.99/11,337.60
  6. Step 6: Final answer
    x = 9,140.87

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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.