Home / 12,650.87-17,458.10-6,985.62

Finding the Fourth Proportional to 12,650.87, 17,458.10 and 6,985.62

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Solution

The fourth proportional to 12,650.87, 17,458.10 and 6,985.62 is: 9,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.87 : 17,458.10 = 6,985.62 : x
  2. Step 2: Convert to fraction form
    12,650.87/17,458.10 = 6,985.62/x
  3. Step 3: Cross multiply
    12,650.87x = 17,458.10 × 6,985.62
  4. Step 4: Simplify right side
    12,650.87x = 121,955,652.52
  5. Step 5: Solve for x
    x = 121,955,652.52/12,650.87
  6. Step 6: Final answer
    x = 9,640.10

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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.