Home / 18,787.60-25,926.20-10,830.16

Finding the Fourth Proportional to 18,787.60, 25,926.20 and 10,830.16

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Solution

The fourth proportional to 18,787.60, 25,926.20 and 10,830.16 is: 14,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.60 : 25,926.20 = 10,830.16 : x
  2. Step 2: Convert to fraction form
    18,787.60/25,926.20 = 10,830.16/x
  3. Step 3: Cross multiply
    18,787.60x = 25,926.20 × 10,830.16
  4. Step 4: Simplify right side
    18,787.60x = 280,784,894.19
  5. Step 5: Solve for x
    x = 280,784,894.19/18,787.60
  6. Step 6: Final answer
    x = 14,945.22

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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.