Home / 7,135.24-10,719.50-6,287.88

Finding the Fourth Proportional to 7,135.24, 10,719.50 and 6,287.88

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Solution

The fourth proportional to 7,135.24, 10,719.50 and 6,287.88 is: 9,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.24 : 10,719.50 = 6,287.88 : x
  2. Step 2: Convert to fraction form
    7,135.24/10,719.50 = 6,287.88/x
  3. Step 3: Cross multiply
    7,135.24x = 10,719.50 × 6,287.88
  4. Step 4: Simplify right side
    7,135.24x = 67,402,929.66
  5. Step 5: Solve for x
    x = 67,402,929.66/7,135.24
  6. Step 6: Final answer
    x = 9,446.48

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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.