Home / 18,707.64-28,061.72-6,227.70

Finding the Fourth Proportional to 18,707.64, 28,061.72 and 6,227.70

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Solution

The fourth proportional to 18,707.64, 28,061.72 and 6,227.70 is: 9,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.64 : 28,061.72 = 6,227.70 : x
  2. Step 2: Convert to fraction form
    18,707.64/28,061.72 = 6,227.70/x
  3. Step 3: Cross multiply
    18,707.64x = 28,061.72 × 6,227.70
  4. Step 4: Simplify right side
    18,707.64x = 174,759,973.64
  5. Step 5: Solve for x
    x = 174,759,973.64/18,707.64
  6. Step 6: Final answer
    x = 9,341.64

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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.