Home / 10,271.43-15,407.15-4,346.78

Finding the Fourth Proportional to 10,271.43, 15,407.15 and 4,346.78

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Solution

The fourth proportional to 10,271.43, 15,407.15 and 4,346.78 is: 6,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,271.43 : 15,407.15 = 4,346.78 : x
  2. Step 2: Convert to fraction form
    10,271.43/15,407.15 = 4,346.78/x
  3. Step 3: Cross multiply
    10,271.43x = 15,407.15 × 4,346.78
  4. Step 4: Simplify right side
    10,271.43x = 66,971,491.48
  5. Step 5: Solve for x
    x = 66,971,491.48/10,271.43
  6. Step 6: Final answer
    x = 6,520.17

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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.