Home / 18,763.16-28,134.34-7,677.62

Finding the Fourth Proportional to 18,763.16, 28,134.34 and 7,677.62

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Solution

The fourth proportional to 18,763.16, 28,134.34 and 7,677.62 is: 11,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.16 : 28,134.34 = 7,677.62 : x
  2. Step 2: Convert to fraction form
    18,763.16/28,134.34 = 7,677.62/x
  3. Step 3: Cross multiply
    18,763.16x = 28,134.34 × 7,677.62
  4. Step 4: Simplify right side
    18,763.16x = 216,004,771.47
  5. Step 5: Solve for x
    x = 216,004,771.47/18,763.16
  6. Step 6: Final answer
    x = 11,512.17

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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.