Home / 18,720.43-28,066.77-8,848.17

Finding the Fourth Proportional to 18,720.43, 28,066.77 and 8,848.17

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Solution

The fourth proportional to 18,720.43, 28,066.77 and 8,848.17 is: 13,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.43 : 28,066.77 = 8,848.17 : x
  2. Step 2: Convert to fraction form
    18,720.43/28,066.77 = 8,848.17/x
  3. Step 3: Cross multiply
    18,720.43x = 28,066.77 × 8,848.17
  4. Step 4: Simplify right side
    18,720.43x = 248,339,552.31
  5. Step 5: Solve for x
    x = 248,339,552.31/18,720.43
  6. Step 6: Final answer
    x = 13,265.70

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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.