Home / 7,768.95-10,721.66-4,624.71

Finding the Fourth Proportional to 7,768.95, 10,721.66 and 4,624.71

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Solution

The fourth proportional to 7,768.95, 10,721.66 and 4,624.71 is: 6,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.95 : 10,721.66 = 4,624.71 : x
  2. Step 2: Convert to fraction form
    7,768.95/10,721.66 = 4,624.71/x
  3. Step 3: Cross multiply
    7,768.95x = 10,721.66 × 4,624.71
  4. Step 4: Simplify right side
    7,768.95x = 49,584,545.10
  5. Step 5: Solve for x
    x = 49,584,545.10/7,768.95
  6. Step 6: Final answer
    x = 6,382.40

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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.