Home / 15,853.60-21,888.66-14,169.61

Finding the Fourth Proportional to 15,853.60, 21,888.66 and 14,169.61

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Solution

The fourth proportional to 15,853.60, 21,888.66 and 14,169.61 is: 19,563.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853.60 : 21,888.66 = 14,169.61 : x
  2. Step 2: Convert to fraction form
    15,853.60/21,888.66 = 14,169.61/x
  3. Step 3: Cross multiply
    15,853.60x = 21,888.66 × 14,169.61
  4. Step 4: Simplify right side
    15,853.60x = 310,153,775.62
  5. Step 5: Solve for x
    x = 310,153,775.62/15,853.60
  6. Step 6: Final answer
    x = 19,563.62

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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.