Home / 15,544.80-21,440.88-9,574.56

Finding the Fourth Proportional to 15,544.80, 21,440.88 and 9,574.56

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Solution

The fourth proportional to 15,544.80, 21,440.88 and 9,574.56 is: 13,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.80 : 21,440.88 = 9,574.56 : x
  2. Step 2: Convert to fraction form
    15,544.80/21,440.88 = 9,574.56/x
  3. Step 3: Cross multiply
    15,544.80x = 21,440.88 × 9,574.56
  4. Step 4: Simplify right side
    15,544.80x = 205,286,992.01
  5. Step 5: Solve for x
    x = 205,286,992.01/15,544.80
  6. Step 6: Final answer
    x = 13,206.15

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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.