Home / 11,100.24-15,317.91-6,386.04

Finding the Fourth Proportional to 11,100.24, 15,317.91 and 6,386.04

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Solution

The fourth proportional to 11,100.24, 15,317.91 and 6,386.04 is: 8,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.24 : 15,317.91 = 6,386.04 : x
  2. Step 2: Convert to fraction form
    11,100.24/15,317.91 = 6,386.04/x
  3. Step 3: Cross multiply
    11,100.24x = 15,317.91 × 6,386.04
  4. Step 4: Simplify right side
    11,100.24x = 97,820,785.98
  5. Step 5: Solve for x
    x = 97,820,785.98/11,100.24
  6. Step 6: Final answer
    x = 8,812.49

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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.