Home / 14,718.48-20,315.88-8,435.04

Finding the Fourth Proportional to 14,718.48, 20,315.88 and 8,435.04

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Solution

The fourth proportional to 14,718.48, 20,315.88 and 8,435.04 is: 11,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.48 : 20,315.88 = 8,435.04 : x
  2. Step 2: Convert to fraction form
    14,718.48/20,315.88 = 8,435.04/x
  3. Step 3: Cross multiply
    14,718.48x = 20,315.88 × 8,435.04
  4. Step 4: Simplify right side
    14,718.48x = 171,365,260.44
  5. Step 5: Solve for x
    x = 171,365,260.44/14,718.48
  6. Step 6: Final answer
    x = 11,642.86

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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.