Home / 7,578.95-10,459.27-4,221.76

Finding the Fourth Proportional to 7,578.95, 10,459.27 and 4,221.76

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Solution

The fourth proportional to 7,578.95, 10,459.27 and 4,221.76 is: 5,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.95 : 10,459.27 = 4,221.76 : x
  2. Step 2: Convert to fraction form
    7,578.95/10,459.27 = 4,221.76/x
  3. Step 3: Cross multiply
    7,578.95x = 10,459.27 × 4,221.76
  4. Step 4: Simplify right side
    7,578.95x = 44,156,527.72
  5. Step 5: Solve for x
    x = 44,156,527.72/7,578.95
  6. Step 6: Final answer
    x = 5,826.21

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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.