Home / 7,856.04-10,842.24-4,319.60

Finding the Fourth Proportional to 7,856.04, 10,842.24 and 4,319.60

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Solution

The fourth proportional to 7,856.04, 10,842.24 and 4,319.60 is: 5,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.04 : 10,842.24 = 4,319.60 : x
  2. Step 2: Convert to fraction form
    7,856.04/10,842.24 = 4,319.60/x
  3. Step 3: Cross multiply
    7,856.04x = 10,842.24 × 4,319.60
  4. Step 4: Simplify right side
    7,856.04x = 46,834,139.90
  5. Step 5: Solve for x
    x = 46,834,139.90/7,856.04
  6. Step 6: Final answer
    x = 5,961.55

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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.