Home / 9,159.55-12,640.25-4,967.80

Finding the Fourth Proportional to 9,159.55, 12,640.25 and 4,967.80

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Solution

The fourth proportional to 9,159.55, 12,640.25 and 4,967.80 is: 6,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.55 : 12,640.25 = 4,967.80 : x
  2. Step 2: Convert to fraction form
    9,159.55/12,640.25 = 4,967.80/x
  3. Step 3: Cross multiply
    9,159.55x = 12,640.25 × 4,967.80
  4. Step 4: Simplify right side
    9,159.55x = 62,794,214.77
  5. Step 5: Solve for x
    x = 62,794,214.77/9,159.55
  6. Step 6: Final answer
    x = 6,855.60

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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.