Home / 15,431.04-23,169.60-8,864.64

Finding the Fourth Proportional to 15,431.04, 23,169.60 and 8,864.64

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Solution

The fourth proportional to 15,431.04, 23,169.60 and 8,864.64 is: 13,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.04 : 23,169.60 = 8,864.64 : x
  2. Step 2: Convert to fraction form
    15,431.04/23,169.60 = 8,864.64/x
  3. Step 3: Cross multiply
    15,431.04x = 23,169.60 × 8,864.64
  4. Step 4: Simplify right side
    15,431.04x = 205,390,162.94
  5. Step 5: Solve for x
    x = 205,390,162.94/15,431.04
  6. Step 6: Final answer
    x = 13,310.20

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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.