Home / 13,155.14-18,154.50-7,566.14

Finding the Fourth Proportional to 13,155.14, 18,154.50 and 7,566.14

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Solution

The fourth proportional to 13,155.14, 18,154.50 and 7,566.14 is: 10,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.14 : 18,154.50 = 7,566.14 : x
  2. Step 2: Convert to fraction form
    13,155.14/18,154.50 = 7,566.14/x
  3. Step 3: Cross multiply
    13,155.14x = 18,154.50 × 7,566.14
  4. Step 4: Simplify right side
    13,155.14x = 137,359,488.63
  5. Step 5: Solve for x
    x = 137,359,488.63/13,155.14
  6. Step 6: Final answer
    x = 10,441.51

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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.