Home / 11,618.69-16,036.34-7,640.17

Finding the Fourth Proportional to 11,618.69, 16,036.34 and 7,640.17

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Solution

The fourth proportional to 11,618.69, 16,036.34 and 7,640.17 is: 10,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.69 : 16,036.34 = 7,640.17 : x
  2. Step 2: Convert to fraction form
    11,618.69/16,036.34 = 7,640.17/x
  3. Step 3: Cross multiply
    11,618.69x = 16,036.34 × 7,640.17
  4. Step 4: Simplify right side
    11,618.69x = 122,520,285.49
  5. Step 5: Solve for x
    x = 122,520,285.49/11,618.69
  6. Step 6: Final answer
    x = 10,545.11

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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.