Home / 15,123.11-20,878.56-10,095.84

Finding the Fourth Proportional to 15,123.11, 20,878.56 and 10,095.84

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Solution

The fourth proportional to 15,123.11, 20,878.56 and 10,095.84 is: 13,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.11 : 20,878.56 = 10,095.84 : x
  2. Step 2: Convert to fraction form
    15,123.11/20,878.56 = 10,095.84/x
  3. Step 3: Cross multiply
    15,123.11x = 20,878.56 × 10,095.84
  4. Step 4: Simplify right side
    15,123.11x = 210,786,601.19
  5. Step 5: Solve for x
    x = 210,786,601.19/15,123.11
  6. Step 6: Final answer
    x = 13,938.05

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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.