Home / 15,574.01-21,491.33-8,499.06

Finding the Fourth Proportional to 15,574.01, 21,491.33 and 8,499.06

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Solution

The fourth proportional to 15,574.01, 21,491.33 and 8,499.06 is: 11,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.01 : 21,491.33 = 8,499.06 : x
  2. Step 2: Convert to fraction form
    15,574.01/21,491.33 = 8,499.06/x
  3. Step 3: Cross multiply
    15,574.01x = 21,491.33 × 8,499.06
  4. Step 4: Simplify right side
    15,574.01x = 182,656,060.65
  5. Step 5: Solve for x
    x = 182,656,060.65/15,574.01
  6. Step 6: Final answer
    x = 11,728.27

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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.