Home / 12,613.30-17,403.70-7,307.80

Finding the Fourth Proportional to 12,613.30, 17,403.70 and 7,307.80

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Solution

The fourth proportional to 12,613.30, 17,403.70 and 7,307.80 is: 10,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.30 : 17,403.70 = 7,307.80 : x
  2. Step 2: Convert to fraction form
    12,613.30/17,403.70 = 7,307.80/x
  3. Step 3: Cross multiply
    12,613.30x = 17,403.70 × 7,307.80
  4. Step 4: Simplify right side
    12,613.30x = 127,182,758.86
  5. Step 5: Solve for x
    x = 127,182,758.86/12,613.30
  6. Step 6: Final answer
    x = 10,083.23

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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.