Home / 13,417.66-20,107.05-7,561.81

Finding the Fourth Proportional to 13,417.66, 20,107.05 and 7,561.81

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Solution

The fourth proportional to 13,417.66, 20,107.05 and 7,561.81 is: 11,331.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.66 : 20,107.05 = 7,561.81 : x
  2. Step 2: Convert to fraction form
    13,417.66/20,107.05 = 7,561.81/x
  3. Step 3: Cross multiply
    13,417.66x = 20,107.05 × 7,561.81
  4. Step 4: Simplify right side
    13,417.66x = 152,045,691.76
  5. Step 5: Solve for x
    x = 152,045,691.76/13,417.66
  6. Step 6: Final answer
    x = 11,331.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.