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Finding the Fourth Proportional to 15,159.60, 22,680 and 9,975.60

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Solution

The fourth proportional to 15,159.60, 22,680 and 9,975.60 is: 14,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.60 : 22,680 = 9,975.60 : x
  2. Step 2: Convert to fraction form
    15,159.60/22,680 = 9,975.60/x
  3. Step 3: Cross multiply
    15,159.60x = 22,680 × 9,975.60
  4. Step 4: Simplify right side
    15,159.60x = 226,246,608
  5. Step 5: Solve for x
    x = 226,246,608/15,159.60
  6. Step 6: Final answer
    x = 14,924.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.