Home / 15,571.47-21,479.01-11,096.65

Finding the Fourth Proportional to 15,571.47, 21,479.01 and 11,096.65

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Solution

The fourth proportional to 15,571.47, 21,479.01 and 11,096.65 is: 15,306.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.47 : 21,479.01 = 11,096.65 : x
  2. Step 2: Convert to fraction form
    15,571.47/21,479.01 = 11,096.65/x
  3. Step 3: Cross multiply
    15,571.47x = 21,479.01 × 11,096.65
  4. Step 4: Simplify right side
    15,571.47x = 238,345,056.32
  5. Step 5: Solve for x
    x = 238,345,056.32/15,571.47
  6. Step 6: Final answer
    x = 15,306.53

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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.