Home / 11,158.02-15,381.63-8,500.82

Finding the Fourth Proportional to 11,158.02, 15,381.63 and 8,500.82

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Solution

The fourth proportional to 11,158.02, 15,381.63 and 8,500.82 is: 11,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.02 : 15,381.63 = 8,500.82 : x
  2. Step 2: Convert to fraction form
    11,158.02/15,381.63 = 8,500.82/x
  3. Step 3: Cross multiply
    11,158.02x = 15,381.63 × 8,500.82
  4. Step 4: Simplify right side
    11,158.02x = 130,756,391.03
  5. Step 5: Solve for x
    x = 130,756,391.03/11,158.02
  6. Step 6: Final answer
    x = 11,718.60

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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.