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Finding the Fourth Proportional to 12,609.71, 17,403.51 and 7,307.75

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Solution

The fourth proportional to 12,609.71, 17,403.51 and 7,307.75 is: 10,085.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.71 : 17,403.51 = 7,307.75 : x
  2. Step 2: Convert to fraction form
    12,609.71/17,403.51 = 7,307.75/x
  3. Step 3: Cross multiply
    12,609.71x = 17,403.51 × 7,307.75
  4. Step 4: Simplify right side
    12,609.71x = 127,180,500.20
  5. Step 5: Solve for x
    x = 127,180,500.20/12,609.71
  6. Step 6: Final answer
    x = 10,085.92

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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.