Home / 11,970.28-16,519.62-7,254.28

Finding the Fourth Proportional to 11,970.28, 16,519.62 and 7,254.28

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Solution

The fourth proportional to 11,970.28, 16,519.62 and 7,254.28 is: 10,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.28 : 16,519.62 = 7,254.28 : x
  2. Step 2: Convert to fraction form
    11,970.28/16,519.62 = 7,254.28/x
  3. Step 3: Cross multiply
    11,970.28x = 16,519.62 × 7,254.28
  4. Step 4: Simplify right side
    11,970.28x = 119,837,948.97
  5. Step 5: Solve for x
    x = 119,837,948.97/11,970.28
  6. Step 6: Final answer
    x = 10,011.29

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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.