Home / 10,949.76-15,066.90-10,643.58

Finding the Fourth Proportional to 10,949.76, 15,066.90 and 10,643.58

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Solution

The fourth proportional to 10,949.76, 15,066.90 and 10,643.58 is: 14,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.76 : 15,066.90 = 10,643.58 : x
  2. Step 2: Convert to fraction form
    10,949.76/15,066.90 = 10,643.58/x
  3. Step 3: Cross multiply
    10,949.76x = 15,066.90 × 10,643.58
  4. Step 4: Simplify right side
    10,949.76x = 160,365,755.50
  5. Step 5: Solve for x
    x = 160,365,755.50/10,949.76
  6. Step 6: Final answer
    x = 14,645.60

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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.