Home / 15,334.04-21,159.90-8,620.68

Finding the Fourth Proportional to 15,334.04, 21,159.90 and 8,620.68

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Solution

The fourth proportional to 15,334.04, 21,159.90 and 8,620.68 is: 11,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.04 : 21,159.90 = 8,620.68 : x
  2. Step 2: Convert to fraction form
    15,334.04/21,159.90 = 8,620.68/x
  3. Step 3: Cross multiply
    15,334.04x = 21,159.90 × 8,620.68
  4. Step 4: Simplify right side
    15,334.04x = 182,412,726.73
  5. Step 5: Solve for x
    x = 182,412,726.73/15,334.04
  6. Step 6: Final answer
    x = 11,895.94

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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.