Home / 10,465.36-15,691.32-4,911.28

Finding the Fourth Proportional to 10,465.36, 15,691.32 and 4,911.28

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Solution

The fourth proportional to 10,465.36, 15,691.32 and 4,911.28 is: 7,363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,465.36 : 15,691.32 = 4,911.28 : x
  2. Step 2: Convert to fraction form
    10,465.36/15,691.32 = 4,911.28/x
  3. Step 3: Cross multiply
    10,465.36x = 15,691.32 × 4,911.28
  4. Step 4: Simplify right side
    10,465.36x = 77,064,466.09
  5. Step 5: Solve for x
    x = 77,064,466.09/10,465.36
  6. Step 6: Final answer
    x = 7,363.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.