Home / 15,314.16-21,135.41-8,600.07

Finding the Fourth Proportional to 15,314.16, 21,135.41 and 8,600.07

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Solution

The fourth proportional to 15,314.16, 21,135.41 and 8,600.07 is: 11,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.16 : 21,135.41 = 8,600.07 : x
  2. Step 2: Convert to fraction form
    15,314.16/21,135.41 = 8,600.07/x
  3. Step 3: Cross multiply
    15,314.16x = 21,135.41 × 8,600.07
  4. Step 4: Simplify right side
    15,314.16x = 181,766,005.48
  5. Step 5: Solve for x
    x = 181,766,005.48/15,314.16
  6. Step 6: Final answer
    x = 11,869.15

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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.