Home / 11,328.71-16,990.34-4,753.13

Finding the Fourth Proportional to 11,328.71, 16,990.34 and 4,753.13

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Solution

The fourth proportional to 11,328.71, 16,990.34 and 4,753.13 is: 7,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.71 : 16,990.34 = 4,753.13 : x
  2. Step 2: Convert to fraction form
    11,328.71/16,990.34 = 4,753.13/x
  3. Step 3: Cross multiply
    11,328.71x = 16,990.34 × 4,753.13
  4. Step 4: Simplify right side
    11,328.71x = 80,757,313.47
  5. Step 5: Solve for x
    x = 80,757,313.47/11,328.71
  6. Step 6: Final answer
    x = 7,128.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.