Home / 18,823.39-28,210.46-7,717.07

Finding the Fourth Proportional to 18,823.39, 28,210.46 and 7,717.07

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Solution

The fourth proportional to 18,823.39, 28,210.46 and 7,717.07 is: 11,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.39 : 28,210.46 = 7,717.07 : x
  2. Step 2: Convert to fraction form
    18,823.39/28,210.46 = 7,717.07/x
  3. Step 3: Cross multiply
    18,823.39x = 28,210.46 × 7,717.07
  4. Step 4: Simplify right side
    18,823.39x = 217,702,126.49
  5. Step 5: Solve for x
    x = 217,702,126.49/18,823.39
  6. Step 6: Final answer
    x = 11,565.51

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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.