Home / 11,270.39-15,554.23-6,490.53

Finding the Fourth Proportional to 11,270.39, 15,554.23 and 6,490.53

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Solution

The fourth proportional to 11,270.39, 15,554.23 and 6,490.53 is: 8,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.39 : 15,554.23 = 6,490.53 : x
  2. Step 2: Convert to fraction form
    11,270.39/15,554.23 = 6,490.53/x
  3. Step 3: Cross multiply
    11,270.39x = 15,554.23 × 6,490.53
  4. Step 4: Simplify right side
    11,270.39x = 100,955,180.22
  5. Step 5: Solve for x
    x = 100,955,180.22/11,270.39
  6. Step 6: Final answer
    x = 8,957.56

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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.