Home / 7,856.13-10,841.52-4,319.40

Finding the Fourth Proportional to 7,856.13, 10,841.52 and 4,319.40

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Solution

The fourth proportional to 7,856.13, 10,841.52 and 4,319.40 is: 5,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.13 : 10,841.52 = 4,319.40 : x
  2. Step 2: Convert to fraction form
    7,856.13/10,841.52 = 4,319.40/x
  3. Step 3: Cross multiply
    7,856.13x = 10,841.52 × 4,319.40
  4. Step 4: Simplify right side
    7,856.13x = 46,828,861.49
  5. Step 5: Solve for x
    x = 46,828,861.49/7,856.13
  6. Step 6: Final answer
    x = 5,960.81

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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.