Home / 18,670.02-28,009.46-5,343.20

Finding the Fourth Proportional to 18,670.02, 28,009.46 and 5,343.20

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Solution

The fourth proportional to 18,670.02, 28,009.46 and 5,343.20 is: 8,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.02 : 28,009.46 = 5,343.20 : x
  2. Step 2: Convert to fraction form
    18,670.02/28,009.46 = 5,343.20/x
  3. Step 3: Cross multiply
    18,670.02x = 28,009.46 × 5,343.20
  4. Step 4: Simplify right side
    18,670.02x = 149,660,146.67
  5. Step 5: Solve for x
    x = 149,660,146.67/18,670.02
  6. Step 6: Final answer
    x = 8,016.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.