Home / 18,341.12-25,309.28-10,787.76

Finding the Fourth Proportional to 18,341.12, 25,309.28 and 10,787.76

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Solution

The fourth proportional to 18,341.12, 25,309.28 and 10,787.76 is: 14,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.12 : 25,309.28 = 10,787.76 : x
  2. Step 2: Convert to fraction form
    18,341.12/25,309.28 = 10,787.76/x
  3. Step 3: Cross multiply
    18,341.12x = 25,309.28 × 10,787.76
  4. Step 4: Simplify right side
    18,341.12x = 273,030,438.41
  5. Step 5: Solve for x
    x = 273,030,438.41/18,341.12
  6. Step 6: Final answer
    x = 14,886.25

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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.