Home / 11,120.49-15,337.76-7,577.55

Finding the Fourth Proportional to 11,120.49, 15,337.76 and 7,577.55

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Solution

The fourth proportional to 11,120.49, 15,337.76 and 7,577.55 is: 10,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.49 : 15,337.76 = 7,577.55 : x
  2. Step 2: Convert to fraction form
    11,120.49/15,337.76 = 7,577.55/x
  3. Step 3: Cross multiply
    11,120.49x = 15,337.76 × 7,577.55
  4. Step 4: Simplify right side
    11,120.49x = 116,222,605.40
  5. Step 5: Solve for x
    x = 116,222,605.40/11,120.49
  6. Step 6: Final answer
    x = 10,451.21

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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.