Home / 7,715.20-10,647.16-4,529.41

Finding the Fourth Proportional to 7,715.20, 10,647.16 and 4,529.41

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Solution

The fourth proportional to 7,715.20, 10,647.16 and 4,529.41 is: 6,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.20 : 10,647.16 = 4,529.41 : x
  2. Step 2: Convert to fraction form
    7,715.20/10,647.16 = 4,529.41/x
  3. Step 3: Cross multiply
    7,715.20x = 10,647.16 × 4,529.41
  4. Step 4: Simplify right side
    7,715.20x = 48,225,352.98
  5. Step 5: Solve for x
    x = 48,225,352.98/7,715.20
  6. Step 6: Final answer
    x = 6,250.69

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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.