Home / 7,888.24-11,826.12-5,415.72

Finding the Fourth Proportional to 7,888.24, 11,826.12 and 5,415.72

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Solution

The fourth proportional to 7,888.24, 11,826.12 and 5,415.72 is: 8,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.24 : 11,826.12 = 5,415.72 : x
  2. Step 2: Convert to fraction form
    7,888.24/11,826.12 = 5,415.72/x
  3. Step 3: Cross multiply
    7,888.24x = 11,826.12 × 5,415.72
  4. Step 4: Simplify right side
    7,888.24x = 64,046,954.61
  5. Step 5: Solve for x
    x = 64,046,954.61/7,888.24
  6. Step 6: Final answer
    x = 8,119.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.