Home / 15,942.79-22,001.93-8,869.06

Finding the Fourth Proportional to 15,942.79, 22,001.93 and 8,869.06

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Solution

The fourth proportional to 15,942.79, 22,001.93 and 8,869.06 is: 12,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.79 : 22,001.93 = 8,869.06 : x
  2. Step 2: Convert to fraction form
    15,942.79/22,001.93 = 8,869.06/x
  3. Step 3: Cross multiply
    15,942.79x = 22,001.93 × 8,869.06
  4. Step 4: Simplify right side
    15,942.79x = 195,136,437.29
  5. Step 5: Solve for x
    x = 195,136,437.29/15,942.79
  6. Step 6: Final answer
    x = 12,239.79

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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.