Home / 7,891.18-10,889.66-4,354.72

Finding the Fourth Proportional to 7,891.18, 10,889.66 and 4,354.72

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Solution

The fourth proportional to 7,891.18, 10,889.66 and 4,354.72 is: 6,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.18 : 10,889.66 = 4,354.72 : x
  2. Step 2: Convert to fraction form
    7,891.18/10,889.66 = 4,354.72/x
  3. Step 3: Cross multiply
    7,891.18x = 10,889.66 × 4,354.72
  4. Step 4: Simplify right side
    7,891.18x = 47,421,420.20
  5. Step 5: Solve for x
    x = 47,421,420.20/7,891.18
  6. Step 6: Final answer
    x = 6,009.42

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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.