Home / 15,948.28-22,014.75-11,980.90

Finding the Fourth Proportional to 15,948.28, 22,014.75 and 11,980.90

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Solution

The fourth proportional to 15,948.28, 22,014.75 and 11,980.90 is: 16,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.28 : 22,014.75 = 11,980.90 : x
  2. Step 2: Convert to fraction form
    15,948.28/22,014.75 = 11,980.90/x
  3. Step 3: Cross multiply
    15,948.28x = 22,014.75 × 11,980.90
  4. Step 4: Simplify right side
    15,948.28x = 263,756,518.28
  5. Step 5: Solve for x
    x = 263,756,518.28/15,948.28
  6. Step 6: Final answer
    x = 16,538.24

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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.