Home / 9,301.42-12,830.56-6,115.29

Finding the Fourth Proportional to 9,301.42, 12,830.56 and 6,115.29

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Solution

The fourth proportional to 9,301.42, 12,830.56 and 6,115.29 is: 8,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.42 : 12,830.56 = 6,115.29 : x
  2. Step 2: Convert to fraction form
    9,301.42/12,830.56 = 6,115.29/x
  3. Step 3: Cross multiply
    9,301.42x = 12,830.56 × 6,115.29
  4. Step 4: Simplify right side
    9,301.42x = 78,462,595.26
  5. Step 5: Solve for x
    x = 78,462,595.26/9,301.42
  6. Step 6: Final answer
    x = 8,435.55

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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.