Home / 11,078.02-15,315.00-10,613.28

Finding the Fourth Proportional to 11,078.02, 15,315.00 and 10,613.28

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Solution

The fourth proportional to 11,078.02, 15,315.00 and 10,613.28 is: 14,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.02 : 15,315.00 = 10,613.28 : x
  2. Step 2: Convert to fraction form
    11,078.02/15,315.00 = 10,613.28/x
  3. Step 3: Cross multiply
    11,078.02x = 15,315.00 × 10,613.28
  4. Step 4: Simplify right side
    11,078.02x = 162,542,344.53
  5. Step 5: Solve for x
    x = 162,542,344.53/11,078.02
  6. Step 6: Final answer
    x = 14,672.51

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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.