Home / 10,640.90-15,960.44-4,397.02

Finding the Fourth Proportional to 10,640.90, 15,960.44 and 4,397.02

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Solution

The fourth proportional to 10,640.90, 15,960.44 and 4,397.02 is: 6,595.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.90 : 15,960.44 = 4,397.02 : x
  2. Step 2: Convert to fraction form
    10,640.90/15,960.44 = 4,397.02/x
  3. Step 3: Cross multiply
    10,640.90x = 15,960.44 × 4,397.02
  4. Step 4: Simplify right side
    10,640.90x = 70,178,344.98
  5. Step 5: Solve for x
    x = 70,178,344.98/10,640.90
  6. Step 6: Final answer
    x = 6,595.15

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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.