Home / 12,948.93-17,869.82-7,641.81

Finding the Fourth Proportional to 12,948.93, 17,869.82 and 7,641.81

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Solution

The fourth proportional to 12,948.93, 17,869.82 and 7,641.81 is: 10,545.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.93 : 17,869.82 = 7,641.81 : x
  2. Step 2: Convert to fraction form
    12,948.93/17,869.82 = 7,641.81/x
  3. Step 3: Cross multiply
    12,948.93x = 17,869.82 × 7,641.81
  4. Step 4: Simplify right side
    12,948.93x = 136,557,730.97
  5. Step 5: Solve for x
    x = 136,557,730.97/12,948.93
  6. Step 6: Final answer
    x = 10,545.87

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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.