Home / 18,685.12-28,032.80-9,801.04

Finding the Fourth Proportional to 18,685.12, 28,032.80 and 9,801.04

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Solution

The fourth proportional to 18,685.12, 28,032.80 and 9,801.04 is: 14,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.12 : 28,032.80 = 9,801.04 : x
  2. Step 2: Convert to fraction form
    18,685.12/28,032.80 = 9,801.04/x
  3. Step 3: Cross multiply
    18,685.12x = 28,032.80 × 9,801.04
  4. Step 4: Simplify right side
    18,685.12x = 274,750,594.11
  5. Step 5: Solve for x
    x = 274,750,594.11/18,685.12
  6. Step 6: Final answer
    x = 14,704.25

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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.