Home / 10,145.36-15,221.28-4,306.88

Finding the Fourth Proportional to 10,145.36, 15,221.28 and 4,306.88

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Solution

The fourth proportional to 10,145.36, 15,221.28 and 4,306.88 is: 6,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.36 : 15,221.28 = 4,306.88 : x
  2. Step 2: Convert to fraction form
    10,145.36/15,221.28 = 4,306.88/x
  3. Step 3: Cross multiply
    10,145.36x = 15,221.28 × 4,306.88
  4. Step 4: Simplify right side
    10,145.36x = 65,556,226.41
  5. Step 5: Solve for x
    x = 65,556,226.41/10,145.36
  6. Step 6: Final answer
    x = 6,461.70

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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.