Home / 15,314.25-21,133.59-8,600.47

Finding the Fourth Proportional to 15,314.25, 21,133.59 and 8,600.47

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Solution

The fourth proportional to 15,314.25, 21,133.59 and 8,600.47 is: 11,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.25 : 21,133.59 = 8,600.47 : x
  2. Step 2: Convert to fraction form
    15,314.25/21,133.59 = 8,600.47/x
  3. Step 3: Cross multiply
    15,314.25x = 21,133.59 × 8,600.47
  4. Step 4: Simplify right side
    15,314.25x = 181,758,721.70
  5. Step 5: Solve for x
    x = 181,758,721.70/15,314.25
  6. Step 6: Final answer
    x = 11,868.60

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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.