Home / 10,640.35-16,040.20-9,926.74

Finding the Fourth Proportional to 10,640.35, 16,040.20 and 9,926.74

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Solution

The fourth proportional to 10,640.35, 16,040.20 and 9,926.74 is: 14,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.35 : 16,040.20 = 9,926.74 : x
  2. Step 2: Convert to fraction form
    10,640.35/16,040.20 = 9,926.74/x
  3. Step 3: Cross multiply
    10,640.35x = 16,040.20 × 9,926.74
  4. Step 4: Simplify right side
    10,640.35x = 159,226,894.95
  5. Step 5: Solve for x
    x = 159,226,894.95/10,640.35
  6. Step 6: Final answer
    x = 14,964.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.