Home / 18,726.90-28,087.28-6,247.02

Finding the Fourth Proportional to 18,726.90, 28,087.28 and 6,247.02

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Solution

The fourth proportional to 18,726.90, 28,087.28 and 6,247.02 is: 9,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.90 : 28,087.28 = 6,247.02 : x
  2. Step 2: Convert to fraction form
    18,726.90/28,087.28 = 6,247.02/x
  3. Step 3: Cross multiply
    18,726.90x = 28,087.28 × 6,247.02
  4. Step 4: Simplify right side
    18,726.90x = 175,461,768.67
  5. Step 5: Solve for x
    x = 175,461,768.67/18,726.90
  6. Step 6: Final answer
    x = 9,369.50

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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.