Home / 18,887.04-28,320.06-7,801.25

Finding the Fourth Proportional to 18,887.04, 28,320.06 and 7,801.25

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Solution

The fourth proportional to 18,887.04, 28,320.06 and 7,801.25 is: 11,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.04 : 28,320.06 = 7,801.25 : x
  2. Step 2: Convert to fraction form
    18,887.04/28,320.06 = 7,801.25/x
  3. Step 3: Cross multiply
    18,887.04x = 28,320.06 × 7,801.25
  4. Step 4: Simplify right side
    18,887.04x = 220,931,755.73
  5. Step 5: Solve for x
    x = 220,931,755.73/18,887.04
  6. Step 6: Final answer
    x = 11,697.53

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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.