Home / 11,160.02-15,384.38-8,502.82

Finding the Fourth Proportional to 11,160.02, 15,384.38 and 8,502.82

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Solution

The fourth proportional to 11,160.02, 15,384.38 and 8,502.82 is: 11,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.02 : 15,384.38 = 8,502.82 : x
  2. Step 2: Convert to fraction form
    11,160.02/15,384.38 = 8,502.82/x
  3. Step 3: Cross multiply
    11,160.02x = 15,384.38 × 8,502.82
  4. Step 4: Simplify right side
    11,160.02x = 130,810,613.95
  5. Step 5: Solve for x
    x = 130,810,613.95/11,160.02
  6. Step 6: Final answer
    x = 11,721.36

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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.