Home / 13,340.15-18,410.12-7,675.76

Finding the Fourth Proportional to 13,340.15, 18,410.12 and 7,675.76

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Solution

The fourth proportional to 13,340.15, 18,410.12 and 7,675.76 is: 10,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.15 : 18,410.12 = 7,675.76 : x
  2. Step 2: Convert to fraction form
    13,340.15/18,410.12 = 7,675.76/x
  3. Step 3: Cross multiply
    13,340.15x = 18,410.12 × 7,675.76
  4. Step 4: Simplify right side
    13,340.15x = 141,311,719.36
  5. Step 5: Solve for x
    x = 141,311,719.36/13,340.15
  6. Step 6: Final answer
    x = 10,592.96

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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.