Home / 11,351.43-15,664.12-6,315.53

Finding the Fourth Proportional to 11,351.43, 15,664.12 and 6,315.53

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Solution

The fourth proportional to 11,351.43, 15,664.12 and 6,315.53 is: 8,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.43 : 15,664.12 = 6,315.53 : x
  2. Step 2: Convert to fraction form
    11,351.43/15,664.12 = 6,315.53/x
  3. Step 3: Cross multiply
    11,351.43x = 15,664.12 × 6,315.53
  4. Step 4: Simplify right side
    11,351.43x = 98,927,125.67
  5. Step 5: Solve for x
    x = 98,927,125.67/11,351.43
  6. Step 6: Final answer
    x = 8,714.95

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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.