Home / 10,901.25-16,360.18-7,738.40

Finding the Fourth Proportional to 10,901.25, 16,360.18 and 7,738.40

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Solution

The fourth proportional to 10,901.25, 16,360.18 and 7,738.40 is: 11,613.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.25 : 16,360.18 = 7,738.40 : x
  2. Step 2: Convert to fraction form
    10,901.25/16,360.18 = 7,738.40/x
  3. Step 3: Cross multiply
    10,901.25x = 16,360.18 × 7,738.40
  4. Step 4: Simplify right side
    10,901.25x = 126,601,638.47
  5. Step 5: Solve for x
    x = 126,601,638.47/10,901.25
  6. Step 6: Final answer
    x = 11,613.50

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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.