Home / 11,388.69-15,715.98-6,353.15

Finding the Fourth Proportional to 11,388.69, 15,715.98 and 6,353.15

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Solution

The fourth proportional to 11,388.69, 15,715.98 and 6,353.15 is: 8,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.69 : 15,715.98 = 6,353.15 : x
  2. Step 2: Convert to fraction form
    11,388.69/15,715.98 = 6,353.15/x
  3. Step 3: Cross multiply
    11,388.69x = 15,715.98 × 6,353.15
  4. Step 4: Simplify right side
    11,388.69x = 99,845,899.76
  5. Step 5: Solve for x
    x = 99,845,899.76/11,388.69
  6. Step 6: Final answer
    x = 8,767.11

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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.