Home / 15,942.96-22,001.58-8,870.04

Finding the Fourth Proportional to 15,942.96, 22,001.58 and 8,870.04

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Solution

The fourth proportional to 15,942.96, 22,001.58 and 8,870.04 is: 12,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.96 : 22,001.58 = 8,870.04 : x
  2. Step 2: Convert to fraction form
    15,942.96/22,001.58 = 8,870.04/x
  3. Step 3: Cross multiply
    15,942.96x = 22,001.58 × 8,870.04
  4. Step 4: Simplify right side
    15,942.96x = 195,154,894.66
  5. Step 5: Solve for x
    x = 195,154,894.66/15,942.96
  6. Step 6: Final answer
    x = 12,240.82

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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.