Home / 18,868.98-26,042.40-10,916.04

Finding the Fourth Proportional to 18,868.98, 26,042.40 and 10,916.04

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Solution

The fourth proportional to 18,868.98, 26,042.40 and 10,916.04 is: 15,065.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.98 : 26,042.40 = 10,916.04 : x
  2. Step 2: Convert to fraction form
    18,868.98/26,042.40 = 10,916.04/x
  3. Step 3: Cross multiply
    18,868.98x = 26,042.40 × 10,916.04
  4. Step 4: Simplify right side
    18,868.98x = 284,279,880.10
  5. Step 5: Solve for x
    x = 284,279,880.10/18,868.98
  6. Step 6: Final answer
    x = 15,065.99

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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.