Home / 15,267.20-21,066.18-8,894.84

Finding the Fourth Proportional to 15,267.20, 21,066.18 and 8,894.84

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Solution

The fourth proportional to 15,267.20, 21,066.18 and 8,894.84 is: 12,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.20 : 21,066.18 = 8,894.84 : x
  2. Step 2: Convert to fraction form
    15,267.20/21,066.18 = 8,894.84/x
  3. Step 3: Cross multiply
    15,267.20x = 21,066.18 × 8,894.84
  4. Step 4: Simplify right side
    15,267.20x = 187,380,300.51
  5. Step 5: Solve for x
    x = 187,380,300.51/15,267.20
  6. Step 6: Final answer
    x = 12,273.39

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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.