Home / 15,310.18-21,126.75-9,262.67

Finding the Fourth Proportional to 15,310.18, 21,126.75 and 9,262.67

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Solution

The fourth proportional to 15,310.18, 21,126.75 and 9,262.67 is: 12,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.18 : 21,126.75 = 9,262.67 : x
  2. Step 2: Convert to fraction form
    15,310.18/21,126.75 = 9,262.67/x
  3. Step 3: Cross multiply
    15,310.18x = 21,126.75 × 9,262.67
  4. Step 4: Simplify right side
    15,310.18x = 195,690,113.42
  5. Step 5: Solve for x
    x = 195,690,113.42/15,310.18
  6. Step 6: Final answer
    x = 12,781.70

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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.