Home / 18,870.24-26,042.88-10,486.72

Finding the Fourth Proportional to 18,870.24, 26,042.88 and 10,486.72

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Solution

The fourth proportional to 18,870.24, 26,042.88 and 10,486.72 is: 14,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.24 : 26,042.88 = 10,486.72 : x
  2. Step 2: Convert to fraction form
    18,870.24/26,042.88 = 10,486.72/x
  3. Step 3: Cross multiply
    18,870.24x = 26,042.88 × 10,486.72
  4. Step 4: Simplify right side
    18,870.24x = 273,104,390.55
  5. Step 5: Solve for x
    x = 273,104,390.55/18,870.24
  6. Step 6: Final answer
    x = 14,472.76

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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.