Home / 10,923.60-16,385.40-6,538.80

Finding the Fourth Proportional to 10,923.60, 16,385.40 and 6,538.80

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Solution

The fourth proportional to 10,923.60, 16,385.40 and 6,538.80 is: 9,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.60 : 16,385.40 = 6,538.80 : x
  2. Step 2: Convert to fraction form
    10,923.60/16,385.40 = 6,538.80/x
  3. Step 3: Cross multiply
    10,923.60x = 16,385.40 × 6,538.80
  4. Step 4: Simplify right side
    10,923.60x = 107,140,853.52
  5. Step 5: Solve for x
    x = 107,140,853.52/10,923.60
  6. Step 6: Final answer
    x = 9,808.20

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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.