Home / 10,891.80-16,337.70-7,392.60

Finding the Fourth Proportional to 10,891.80, 16,337.70 and 7,392.60

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Solution

The fourth proportional to 10,891.80, 16,337.70 and 7,392.60 is: 11,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.80 : 16,337.70 = 7,392.60 : x
  2. Step 2: Convert to fraction form
    10,891.80/16,337.70 = 7,392.60/x
  3. Step 3: Cross multiply
    10,891.80x = 16,337.70 × 7,392.60
  4. Step 4: Simplify right side
    10,891.80x = 120,778,081.02
  5. Step 5: Solve for x
    x = 120,778,081.02/10,891.80
  6. Step 6: Final answer
    x = 11,088.90

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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.