Home / 15,445.08-21,314.21-8,371.51

Finding the Fourth Proportional to 15,445.08, 21,314.21 and 8,371.51

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Solution

The fourth proportional to 15,445.08, 21,314.21 and 8,371.51 is: 11,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.08 : 21,314.21 = 8,371.51 : x
  2. Step 2: Convert to fraction form
    15,445.08/21,314.21 = 8,371.51/x
  3. Step 3: Cross multiply
    15,445.08x = 21,314.21 × 8,371.51
  4. Step 4: Simplify right side
    15,445.08x = 178,432,122.16
  5. Step 5: Solve for x
    x = 178,432,122.16/15,445.08
  6. Step 6: Final answer
    x = 11,552.68

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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.