Home / 13,244.75-18,278.08-7,276.80

Finding the Fourth Proportional to 13,244.75, 18,278.08 and 7,276.80

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Solution

The fourth proportional to 13,244.75, 18,278.08 and 7,276.80 is: 10,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.75 : 18,278.08 = 7,276.80 : x
  2. Step 2: Convert to fraction form
    13,244.75/18,278.08 = 7,276.80/x
  3. Step 3: Cross multiply
    13,244.75x = 18,278.08 × 7,276.80
  4. Step 4: Simplify right side
    13,244.75x = 133,005,941.86
  5. Step 5: Solve for x
    x = 133,005,941.86/13,244.75
  6. Step 6: Final answer
    x = 10,042.17

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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.