Home / 10,143.92-15,218.04-4,300.40

Finding the Fourth Proportional to 10,143.92, 15,218.04 and 4,300.40

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Solution

The fourth proportional to 10,143.92, 15,218.04 and 4,300.40 is: 6,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.92 : 15,218.04 = 4,300.40 : x
  2. Step 2: Convert to fraction form
    10,143.92/15,218.04 = 4,300.40/x
  3. Step 3: Cross multiply
    10,143.92x = 15,218.04 × 4,300.40
  4. Step 4: Simplify right side
    10,143.92x = 65,443,659.22
  5. Step 5: Solve for x
    x = 65,443,659.22/10,143.92
  6. Step 6: Final answer
    x = 6,451.52

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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.