Home / 7,865.92-10,856.84-4,510.72

Finding the Fourth Proportional to 7,865.92, 10,856.84 and 4,510.72

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Solution

The fourth proportional to 7,865.92, 10,856.84 and 4,510.72 is: 6,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.92 : 10,856.84 = 4,510.72 : x
  2. Step 2: Convert to fraction form
    7,865.92/10,856.84 = 4,510.72/x
  3. Step 3: Cross multiply
    7,865.92x = 10,856.84 × 4,510.72
  4. Step 4: Simplify right side
    7,865.92x = 48,972,165.32
  5. Step 5: Solve for x
    x = 48,972,165.32/7,865.92
  6. Step 6: Final answer
    x = 6,225.87

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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.