Home / 9,827.23-13,545.78-6,639.53

Finding the Fourth Proportional to 9,827.23, 13,545.78 and 6,639.53

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Solution

The fourth proportional to 9,827.23, 13,545.78 and 6,639.53 is: 9,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,827.23 : 13,545.78 = 6,639.53 : x
  2. Step 2: Convert to fraction form
    9,827.23/13,545.78 = 6,639.53/x
  3. Step 3: Cross multiply
    9,827.23x = 13,545.78 × 6,639.53
  4. Step 4: Simplify right side
    9,827.23x = 89,937,511.76
  5. Step 5: Solve for x
    x = 89,937,511.76/9,827.23
  6. Step 6: Final answer
    x = 9,151.87

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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.