Home / 10,117.80-13,959.90-6,137.46

Finding the Fourth Proportional to 10,117.80, 13,959.90 and 6,137.46

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Solution

The fourth proportional to 10,117.80, 13,959.90 and 6,137.46 is: 8,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.80 : 13,959.90 = 6,137.46 : x
  2. Step 2: Convert to fraction form
    10,117.80/13,959.90 = 6,137.46/x
  3. Step 3: Cross multiply
    10,117.80x = 13,959.90 × 6,137.46
  4. Step 4: Simplify right side
    10,117.80x = 85,678,327.85
  5. Step 5: Solve for x
    x = 85,678,327.85/10,117.80
  6. Step 6: Final answer
    x = 8,468.08

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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.