Home / 18,389.38-25,377.34-10,005.94

Finding the Fourth Proportional to 18,389.38, 25,377.34 and 10,005.94

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Solution

The fourth proportional to 18,389.38, 25,377.34 and 10,005.94 is: 13,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.38 : 25,377.34 = 10,005.94 : x
  2. Step 2: Convert to fraction form
    18,389.38/25,377.34 = 10,005.94/x
  3. Step 3: Cross multiply
    18,389.38x = 25,377.34 × 10,005.94
  4. Step 4: Simplify right side
    18,389.38x = 253,924,141.40
  5. Step 5: Solve for x
    x = 253,924,141.40/18,389.38
  6. Step 6: Final answer
    x = 13,808.19

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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.