Home / 18,688.12-28,032.04-6,842.71

Finding the Fourth Proportional to 18,688.12, 28,032.04 and 6,842.71

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Solution

The fourth proportional to 18,688.12, 28,032.04 and 6,842.71 is: 10,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.12 : 28,032.04 = 6,842.71 : x
  2. Step 2: Convert to fraction form
    18,688.12/28,032.04 = 6,842.71/x
  3. Step 3: Cross multiply
    18,688.12x = 28,032.04 × 6,842.71
  4. Step 4: Simplify right side
    18,688.12x = 191,815,164.02
  5. Step 5: Solve for x
    x = 191,815,164.02/18,688.12
  6. Step 6: Final answer
    x = 10,264.02

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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.