Home / 10,957.56-15,117.40-6,980.44

Finding the Fourth Proportional to 10,957.56, 15,117.40 and 6,980.44

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Solution

The fourth proportional to 10,957.56, 15,117.40 and 6,980.44 is: 9,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.56 : 15,117.40 = 6,980.44 : x
  2. Step 2: Convert to fraction form
    10,957.56/15,117.40 = 6,980.44/x
  3. Step 3: Cross multiply
    10,957.56x = 15,117.40 × 6,980.44
  4. Step 4: Simplify right side
    10,957.56x = 105,526,103.66
  5. Step 5: Solve for x
    x = 105,526,103.66/10,957.56
  6. Step 6: Final answer
    x = 9,630.44

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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.