Home / 11,313.20-15,618.72-7,535.36

Finding the Fourth Proportional to 11,313.20, 15,618.72 and 7,535.36

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Solution

The fourth proportional to 11,313.20, 15,618.72 and 7,535.36 is: 10,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.20 : 15,618.72 = 7,535.36 : x
  2. Step 2: Convert to fraction form
    11,313.20/15,618.72 = 7,535.36/x
  3. Step 3: Cross multiply
    11,313.20x = 15,618.72 × 7,535.36
  4. Step 4: Simplify right side
    11,313.20x = 117,692,677.94
  5. Step 5: Solve for x
    x = 117,692,677.94/11,313.20
  6. Step 6: Final answer
    x = 10,403.13

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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.