Home / 10,952.60-16,428.90-5,109.80

Finding the Fourth Proportional to 10,952.60, 16,428.90 and 5,109.80

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Solution

The fourth proportional to 10,952.60, 16,428.90 and 5,109.80 is: 7,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,952.60 : 16,428.90 = 5,109.80 : x
  2. Step 2: Convert to fraction form
    10,952.60/16,428.90 = 5,109.80/x
  3. Step 3: Cross multiply
    10,952.60x = 16,428.90 × 5,109.80
  4. Step 4: Simplify right side
    10,952.60x = 83,948,393.22
  5. Step 5: Solve for x
    x = 83,948,393.22/10,952.60
  6. Step 6: Final answer
    x = 7,664.70

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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.