Home / 15,238.68-21,031.62-9,269.19

Finding the Fourth Proportional to 15,238.68, 21,031.62 and 9,269.19

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Solution

The fourth proportional to 15,238.68, 21,031.62 and 9,269.19 is: 12,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.68 : 21,031.62 = 9,269.19 : x
  2. Step 2: Convert to fraction form
    15,238.68/21,031.62 = 9,269.19/x
  3. Step 3: Cross multiply
    15,238.68x = 21,031.62 × 9,269.19
  4. Step 4: Simplify right side
    15,238.68x = 194,946,081.79
  5. Step 5: Solve for x
    x = 194,946,081.79/15,238.68
  6. Step 6: Final answer
    x = 12,792.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.