Home / 12,545.36-17,312.62-6,880.15

Finding the Fourth Proportional to 12,545.36, 17,312.62 and 6,880.15

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Solution

The fourth proportional to 12,545.36, 17,312.62 and 6,880.15 is: 9,494.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.36 : 17,312.62 = 6,880.15 : x
  2. Step 2: Convert to fraction form
    12,545.36/17,312.62 = 6,880.15/x
  3. Step 3: Cross multiply
    12,545.36x = 17,312.62 × 6,880.15
  4. Step 4: Simplify right side
    12,545.36x = 119,113,422.49
  5. Step 5: Solve for x
    x = 119,113,422.49/12,545.36
  6. Step 6: Final answer
    x = 9,494.62

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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.