Home / 15,400.16-21,252.12-8,326.55

Finding the Fourth Proportional to 15,400.16, 21,252.12 and 8,326.55

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Solution

The fourth proportional to 15,400.16, 21,252.12 and 8,326.55 is: 11,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.16 : 21,252.12 = 8,326.55 : x
  2. Step 2: Convert to fraction form
    15,400.16/21,252.12 = 8,326.55/x
  3. Step 3: Cross multiply
    15,400.16x = 21,252.12 × 8,326.55
  4. Step 4: Simplify right side
    15,400.16x = 176,956,839.79
  5. Step 5: Solve for x
    x = 176,956,839.79/15,400.16
  6. Step 6: Final answer
    x = 11,490.58

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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.