Home / 13,614.14-18,779.36-8,569.61

Finding the Fourth Proportional to 13,614.14, 18,779.36 and 8,569.61

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Solution

The fourth proportional to 13,614.14, 18,779.36 and 8,569.61 is: 11,820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.14 : 18,779.36 = 8,569.61 : x
  2. Step 2: Convert to fraction form
    13,614.14/18,779.36 = 8,569.61/x
  3. Step 3: Cross multiply
    13,614.14x = 18,779.36 × 8,569.61
  4. Step 4: Simplify right side
    13,614.14x = 160,931,791.25
  5. Step 5: Solve for x
    x = 160,931,791.25/13,614.14
  6. Step 6: Final answer
    x = 11,820.93

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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.