Home / 9,114.32-12,577.80-5,135.48

Finding the Fourth Proportional to 9,114.32, 12,577.80 and 5,135.48

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Solution

The fourth proportional to 9,114.32, 12,577.80 and 5,135.48 is: 7,086.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.32 : 12,577.80 = 5,135.48 : x
  2. Step 2: Convert to fraction form
    9,114.32/12,577.80 = 5,135.48/x
  3. Step 3: Cross multiply
    9,114.32x = 12,577.80 × 5,135.48
  4. Step 4: Simplify right side
    9,114.32x = 64,593,040.34
  5. Step 5: Solve for x
    x = 64,593,040.34/9,114.32
  6. Step 6: Final answer
    x = 7,086.98

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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.