Home / 9,613.76-13,259.31-6,628.91

Finding the Fourth Proportional to 9,613.76, 13,259.31 and 6,628.91

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Solution

The fourth proportional to 9,613.76, 13,259.31 and 6,628.91 is: 9,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.76 : 13,259.31 = 6,628.91 : x
  2. Step 2: Convert to fraction form
    9,613.76/13,259.31 = 6,628.91/x
  3. Step 3: Cross multiply
    9,613.76x = 13,259.31 × 6,628.91
  4. Step 4: Simplify right side
    9,613.76x = 87,894,772.65
  5. Step 5: Solve for x
    x = 87,894,772.65/9,613.76
  6. Step 6: Final answer
    x = 9,142.60

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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.