Home / 12,520.60-17,275.86-7,214.04

Finding the Fourth Proportional to 12,520.60, 17,275.86 and 7,214.04

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Solution

The fourth proportional to 12,520.60, 17,275.86 and 7,214.04 is: 9,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.60 : 17,275.86 = 7,214.04 : x
  2. Step 2: Convert to fraction form
    12,520.60/17,275.86 = 7,214.04/x
  3. Step 3: Cross multiply
    12,520.60x = 17,275.86 × 7,214.04
  4. Step 4: Simplify right side
    12,520.60x = 124,628,745.07
  5. Step 5: Solve for x
    x = 124,628,745.07/12,520.60
  6. Step 6: Final answer
    x = 9,953.90

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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.