Home / 9,259.83-12,778.68-5,281.19

Finding the Fourth Proportional to 9,259.83, 12,778.68 and 5,281.19

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Solution

The fourth proportional to 9,259.83, 12,778.68 and 5,281.19 is: 7,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,259.83 : 12,778.68 = 5,281.19 : x
  2. Step 2: Convert to fraction form
    9,259.83/12,778.68 = 5,281.19/x
  3. Step 3: Cross multiply
    9,259.83x = 12,778.68 × 5,281.19
  4. Step 4: Simplify right side
    9,259.83x = 67,486,573.14
  5. Step 5: Solve for x
    x = 67,486,573.14/9,259.83
  6. Step 6: Final answer
    x = 7,288.10

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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.