Home / 9,139.55-13,707.60-4,454.86

Finding the Fourth Proportional to 9,139.55, 13,707.60 and 4,454.86

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Solution

The fourth proportional to 9,139.55, 13,707.60 and 4,454.86 is: 6,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.55 : 13,707.60 = 4,454.86 : x
  2. Step 2: Convert to fraction form
    9,139.55/13,707.60 = 4,454.86/x
  3. Step 3: Cross multiply
    9,139.55x = 13,707.60 × 4,454.86
  4. Step 4: Simplify right side
    9,139.55x = 61,065,359.26
  5. Step 5: Solve for x
    x = 61,065,359.26/9,139.55
  6. Step 6: Final answer
    x = 6,681.44

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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.