Home / 10,901.36-16,346.28-4,742

Finding the Fourth Proportional to 10,901.36, 16,346.28 and 4,742

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Solution

The fourth proportional to 10,901.36, 16,346.28 and 4,742 is: 7,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.36 : 16,346.28 = 4,742 : x
  2. Step 2: Convert to fraction form
    10,901.36/16,346.28 = 4,742/x
  3. Step 3: Cross multiply
    10,901.36x = 16,346.28 × 4,742
  4. Step 4: Simplify right side
    10,901.36x = 77,514,059.76
  5. Step 5: Solve for x
    x = 77,514,059.76/10,901.36
  6. Step 6: Final answer
    x = 7,110.49

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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.