Home / 7,867.20-10,848.96-5,625.12

Finding the Fourth Proportional to 7,867.20, 10,848.96 and 5,625.12

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Solution

The fourth proportional to 7,867.20, 10,848.96 and 5,625.12 is: 7,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.20 : 10,848.96 = 5,625.12 : x
  2. Step 2: Convert to fraction form
    7,867.20/10,848.96 = 5,625.12/x
  3. Step 3: Cross multiply
    7,867.20x = 10,848.96 × 5,625.12
  4. Step 4: Simplify right side
    7,867.20x = 61,026,701.88
  5. Step 5: Solve for x
    x = 61,026,701.88/7,867.20
  6. Step 6: Final answer
    x = 7,757.11

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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.