Home / 15,942.96-22,001.76-8,870.58

Finding the Fourth Proportional to 15,942.96, 22,001.76 and 8,870.58

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Solution

The fourth proportional to 15,942.96, 22,001.76 and 8,870.58 is: 12,241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.96 : 22,001.76 = 8,870.58 : x
  2. Step 2: Convert to fraction form
    15,942.96/22,001.76 = 8,870.58/x
  3. Step 3: Cross multiply
    15,942.96x = 22,001.76 × 8,870.58
  4. Step 4: Simplify right side
    15,942.96x = 195,168,372.22
  5. Step 5: Solve for x
    x = 195,168,372.22/15,942.96
  6. Step 6: Final answer
    x = 12,241.66

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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.