Home / 10,979.02-16,470.60-4,405.71

Finding the Fourth Proportional to 10,979.02, 16,470.60 and 4,405.71

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Solution

The fourth proportional to 10,979.02, 16,470.60 and 4,405.71 is: 6,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.02 : 16,470.60 = 4,405.71 : x
  2. Step 2: Convert to fraction form
    10,979.02/16,470.60 = 4,405.71/x
  3. Step 3: Cross multiply
    10,979.02x = 16,470.60 × 4,405.71
  4. Step 4: Simplify right side
    10,979.02x = 72,564,687.13
  5. Step 5: Solve for x
    x = 72,564,687.13/10,979.02
  6. Step 6: Final answer
    x = 6,609.40

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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.