Home / 9,818.90-13,550.04-5,342.57

Finding the Fourth Proportional to 9,818.90, 13,550.04 and 5,342.57

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Solution

The fourth proportional to 9,818.90, 13,550.04 and 5,342.57 is: 7,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.90 : 13,550.04 = 5,342.57 : x
  2. Step 2: Convert to fraction form
    9,818.90/13,550.04 = 5,342.57/x
  3. Step 3: Cross multiply
    9,818.90x = 13,550.04 × 5,342.57
  4. Step 4: Simplify right side
    9,818.90x = 72,392,037.20
  5. Step 5: Solve for x
    x = 72,392,037.20/9,818.90
  6. Step 6: Final answer
    x = 7,372.72

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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.