Home / 12,545.71-17,313.30-6,880.10

Finding the Fourth Proportional to 12,545.71, 17,313.30 and 6,880.10

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Solution

The fourth proportional to 12,545.71, 17,313.30 and 6,880.10 is: 9,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.71 : 17,313.30 = 6,880.10 : x
  2. Step 2: Convert to fraction form
    12,545.71/17,313.30 = 6,880.10/x
  3. Step 3: Cross multiply
    12,545.71x = 17,313.30 × 6,880.10
  4. Step 4: Simplify right side
    12,545.71x = 119,117,148.76
  5. Step 5: Solve for x
    x = 119,117,148.76/12,545.71
  6. Step 6: Final answer
    x = 9,494.65

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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.