Home / 15,153.66-20,910.63-11,176.95

Finding the Fourth Proportional to 15,153.66, 20,910.63 and 11,176.95

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Solution

The fourth proportional to 15,153.66, 20,910.63 and 11,176.95 is: 15,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.66 : 20,910.63 = 11,176.95 : x
  2. Step 2: Convert to fraction form
    15,153.66/20,910.63 = 11,176.95/x
  3. Step 3: Cross multiply
    15,153.66x = 20,910.63 × 11,176.95
  4. Step 4: Simplify right side
    15,153.66x = 233,717,065.98
  5. Step 5: Solve for x
    x = 233,717,065.98/15,153.66
  6. Step 6: Final answer
    x = 15,423.14

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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.