Home / 15,156.02-20,913.92-11,179.33

Finding the Fourth Proportional to 15,156.02, 20,913.92 and 11,179.33

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Solution

The fourth proportional to 15,156.02, 20,913.92 and 11,179.33 is: 15,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.02 : 20,913.92 = 11,179.33 : x
  2. Step 2: Convert to fraction form
    15,156.02/20,913.92 = 11,179.33/x
  3. Step 3: Cross multiply
    15,156.02x = 20,913.92 × 11,179.33
  4. Step 4: Simplify right side
    15,156.02x = 233,803,613.27
  5. Step 5: Solve for x
    x = 233,803,613.27/15,156.02
  6. Step 6: Final answer
    x = 15,426.45

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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.