Home / 7,856.60-10,842.28-4,320.04

Finding the Fourth Proportional to 7,856.60, 10,842.28 and 4,320.04

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Solution

The fourth proportional to 7,856.60, 10,842.28 and 4,320.04 is: 5,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.60 : 10,842.28 = 4,320.04 : x
  2. Step 2: Convert to fraction form
    7,856.60/10,842.28 = 4,320.04/x
  3. Step 3: Cross multiply
    7,856.60x = 10,842.28 × 4,320.04
  4. Step 4: Simplify right side
    7,856.60x = 46,839,083.29
  5. Step 5: Solve for x
    x = 46,839,083.29/7,856.60
  6. Step 6: Final answer
    x = 5,961.75

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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.