Home / 10,215.20-15,302.13-9,364.70

Finding the Fourth Proportional to 10,215.20, 15,302.13 and 9,364.70

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Solution

The fourth proportional to 10,215.20, 15,302.13 and 9,364.70 is: 14,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.20 : 15,302.13 = 9,364.70 : x
  2. Step 2: Convert to fraction form
    10,215.20/15,302.13 = 9,364.70/x
  3. Step 3: Cross multiply
    10,215.20x = 15,302.13 × 9,364.70
  4. Step 4: Simplify right side
    10,215.20x = 143,299,780.30
  5. Step 5: Solve for x
    x = 143,299,780.30/10,215.20
  6. Step 6: Final answer
    x = 14,028.10

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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.