Home / 11,140.92-15,374.40-6,172.92

Finding the Fourth Proportional to 11,140.92, 15,374.40 and 6,172.92

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Solution

The fourth proportional to 11,140.92, 15,374.40 and 6,172.92 is: 8,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.92 : 15,374.40 = 6,172.92 : x
  2. Step 2: Convert to fraction form
    11,140.92/15,374.40 = 6,172.92/x
  3. Step 3: Cross multiply
    11,140.92x = 15,374.40 × 6,172.92
  4. Step 4: Simplify right side
    11,140.92x = 94,904,941.25
  5. Step 5: Solve for x
    x = 94,904,941.25/11,140.92
  6. Step 6: Final answer
    x = 8,518.59

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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.