Home / 9,820.65-13,551.78-5,572.61

Finding the Fourth Proportional to 9,820.65, 13,551.78 and 5,572.61

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Solution

The fourth proportional to 9,820.65, 13,551.78 and 5,572.61 is: 7,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.65 : 13,551.78 = 5,572.61 : x
  2. Step 2: Convert to fraction form
    9,820.65/13,551.78 = 5,572.61/x
  3. Step 3: Cross multiply
    9,820.65x = 13,551.78 × 5,572.61
  4. Step 4: Simplify right side
    9,820.65x = 75,518,784.75
  5. Step 5: Solve for x
    x = 75,518,784.75/9,820.65
  6. Step 6: Final answer
    x = 7,689.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.