Home / 7,889.18-10,886.90-4,352.72

Finding the Fourth Proportional to 7,889.18, 10,886.90 and 4,352.72

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Solution

The fourth proportional to 7,889.18, 10,886.90 and 4,352.72 is: 6,006.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.18 : 10,886.90 = 4,352.72 : x
  2. Step 2: Convert to fraction form
    7,889.18/10,886.90 = 4,352.72/x
  3. Step 3: Cross multiply
    7,889.18x = 10,886.90 × 4,352.72
  4. Step 4: Simplify right side
    7,889.18x = 47,387,627.37
  5. Step 5: Solve for x
    x = 47,387,627.37/7,889.18
  6. Step 6: Final answer
    x = 6,006.66

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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.