Home / 12,657.39-18,989.73-5,263.52

Finding the Fourth Proportional to 12,657.39, 18,989.73 and 5,263.52

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Solution

The fourth proportional to 12,657.39, 18,989.73 and 5,263.52 is: 7,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.39 : 18,989.73 = 5,263.52 : x
  2. Step 2: Convert to fraction form
    12,657.39/18,989.73 = 5,263.52/x
  3. Step 3: Cross multiply
    12,657.39x = 18,989.73 × 5,263.52
  4. Step 4: Simplify right side
    12,657.39x = 99,952,728.70
  5. Step 5: Solve for x
    x = 99,952,728.70/12,657.39
  6. Step 6: Final answer
    x = 7,896.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.