Home / 18,685.46-25,785.95-10,187.57

Finding the Fourth Proportional to 18,685.46, 25,785.95 and 10,187.57

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Solution

The fourth proportional to 18,685.46, 25,785.95 and 10,187.57 is: 14,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.46 : 25,785.95 = 10,187.57 : x
  2. Step 2: Convert to fraction form
    18,685.46/25,785.95 = 10,187.57/x
  3. Step 3: Cross multiply
    18,685.46x = 25,785.95 × 10,187.57
  4. Step 4: Simplify right side
    18,685.46x = 262,696,184.17
  5. Step 5: Solve for x
    x = 262,696,184.17/18,685.46
  6. Step 6: Final answer
    x = 14,058.85

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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.