Home / 7,686.48-11,521.08-3,793.62

Finding the Fourth Proportional to 7,686.48, 11,521.08 and 3,793.62

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Solution

The fourth proportional to 7,686.48, 11,521.08 and 3,793.62 is: 5,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.48 : 11,521.08 = 3,793.62 : x
  2. Step 2: Convert to fraction form
    7,686.48/11,521.08 = 3,793.62/x
  3. Step 3: Cross multiply
    7,686.48x = 11,521.08 × 3,793.62
  4. Step 4: Simplify right side
    7,686.48x = 43,706,599.51
  5. Step 5: Solve for x
    x = 43,706,599.51/7,686.48
  6. Step 6: Final answer
    x = 5,686.17

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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.