Home / 10,980.29-15,152.52-6,135.05

Finding the Fourth Proportional to 10,980.29, 15,152.52 and 6,135.05

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Solution

The fourth proportional to 10,980.29, 15,152.52 and 6,135.05 is: 8,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.29 : 15,152.52 = 6,135.05 : x
  2. Step 2: Convert to fraction form
    10,980.29/15,152.52 = 6,135.05/x
  3. Step 3: Cross multiply
    10,980.29x = 15,152.52 × 6,135.05
  4. Step 4: Simplify right side
    10,980.29x = 92,961,476.95
  5. Step 5: Solve for x
    x = 92,961,476.95/10,980.29
  6. Step 6: Final answer
    x = 8,466.22

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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.