Home / 13,550.76-18,700.40-7,582.38

Finding the Fourth Proportional to 13,550.76, 18,700.40 and 7,582.38

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Solution

The fourth proportional to 13,550.76, 18,700.40 and 7,582.38 is: 10,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.76 : 18,700.40 = 7,582.38 : x
  2. Step 2: Convert to fraction form
    13,550.76/18,700.40 = 7,582.38/x
  3. Step 3: Cross multiply
    13,550.76x = 18,700.40 × 7,582.38
  4. Step 4: Simplify right side
    13,550.76x = 141,793,538.95
  5. Step 5: Solve for x
    x = 141,793,538.95/13,550.76
  6. Step 6: Final answer
    x = 10,463.88

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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.