Home / 9,113.66-12,577.40-5,577.56

Finding the Fourth Proportional to 9,113.66, 12,577.40 and 5,577.56

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Solution

The fourth proportional to 9,113.66, 12,577.40 and 5,577.56 is: 7,697.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.66 : 12,577.40 = 5,577.56 : x
  2. Step 2: Convert to fraction form
    9,113.66/12,577.40 = 5,577.56/x
  3. Step 3: Cross multiply
    9,113.66x = 12,577.40 × 5,577.56
  4. Step 4: Simplify right side
    9,113.66x = 70,151,203.14
  5. Step 5: Solve for x
    x = 70,151,203.14/9,113.66
  6. Step 6: Final answer
    x = 7,697.37

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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.