Home / 12,581.45-17,362.79-6,916.63

Finding the Fourth Proportional to 12,581.45, 17,362.79 and 6,916.63

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Solution

The fourth proportional to 12,581.45, 17,362.79 and 6,916.63 is: 9,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.45 : 17,362.79 = 6,916.63 : x
  2. Step 2: Convert to fraction form
    12,581.45/17,362.79 = 6,916.63/x
  3. Step 3: Cross multiply
    12,581.45x = 17,362.79 × 6,916.63
  4. Step 4: Simplify right side
    12,581.45x = 120,092,094.99
  5. Step 5: Solve for x
    x = 120,092,094.99/12,581.45
  6. Step 6: Final answer
    x = 9,545.17

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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.