Home / 13,123.29-18,117.51-9,095.97

Finding the Fourth Proportional to 13,123.29, 18,117.51 and 9,095.97

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Solution

The fourth proportional to 13,123.29, 18,117.51 and 9,095.97 is: 12,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.29 : 18,117.51 = 9,095.97 : x
  2. Step 2: Convert to fraction form
    13,123.29/18,117.51 = 9,095.97/x
  3. Step 3: Cross multiply
    13,123.29x = 18,117.51 × 9,095.97
  4. Step 4: Simplify right side
    13,123.29x = 164,796,327.43
  5. Step 5: Solve for x
    x = 164,796,327.43/13,123.29
  6. Step 6: Final answer
    x = 12,557.55

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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.