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Finding the Fourth Proportional to 18,690.76, 28,041.59 and 6,040.23

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Solution

The fourth proportional to 18,690.76, 28,041.59 and 6,040.23 is: 9,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.76 : 28,041.59 = 6,040.23 : x
  2. Step 2: Convert to fraction form
    18,690.76/28,041.59 = 6,040.23/x
  3. Step 3: Cross multiply
    18,690.76x = 28,041.59 × 6,040.23
  4. Step 4: Simplify right side
    18,690.76x = 169,377,653.17
  5. Step 5: Solve for x
    x = 169,377,653.17/18,690.76
  6. Step 6: Final answer
    x = 9,062.11

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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.