Home / 7,856.56-10,842.16-4,319.76

Finding the Fourth Proportional to 7,856.56, 10,842.16 and 4,319.76

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Solution

The fourth proportional to 7,856.56, 10,842.16 and 4,319.76 is: 5,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.56 : 10,842.16 = 4,319.76 : x
  2. Step 2: Convert to fraction form
    7,856.56/10,842.16 = 4,319.76/x
  3. Step 3: Cross multiply
    7,856.56x = 10,842.16 × 4,319.76
  4. Step 4: Simplify right side
    7,856.56x = 46,835,529.08
  5. Step 5: Solve for x
    x = 46,835,529.08/7,856.56
  6. Step 6: Final answer
    x = 5,961.33

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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.