Home / 10,719.40-16,079.10-4,877.68

Finding the Fourth Proportional to 10,719.40, 16,079.10 and 4,877.68

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Solution

The fourth proportional to 10,719.40, 16,079.10 and 4,877.68 is: 7,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.40 : 16,079.10 = 4,877.68 : x
  2. Step 2: Convert to fraction form
    10,719.40/16,079.10 = 4,877.68/x
  3. Step 3: Cross multiply
    10,719.40x = 16,079.10 × 4,877.68
  4. Step 4: Simplify right side
    10,719.40x = 78,428,704.49
  5. Step 5: Solve for x
    x = 78,428,704.49/10,719.40
  6. Step 6: Final answer
    x = 7,316.52

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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.