Home / 13,567.40-20,338.95-8,889.65

Finding the Fourth Proportional to 13,567.40, 20,338.95 and 8,889.65

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Solution

The fourth proportional to 13,567.40, 20,338.95 and 8,889.65 is: 13,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.40 : 20,338.95 = 8,889.65 : x
  2. Step 2: Convert to fraction form
    13,567.40/20,338.95 = 8,889.65/x
  3. Step 3: Cross multiply
    13,567.40x = 20,338.95 × 8,889.65
  4. Step 4: Simplify right side
    13,567.40x = 180,806,146.87
  5. Step 5: Solve for x
    x = 180,806,146.87/13,567.40
  6. Step 6: Final answer
    x = 13,326.51

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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.