Home / 11,135.08-15,331.44-9,453

Finding the Fourth Proportional to 11,135.08, 15,331.44 and 9,453

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Solution

The fourth proportional to 11,135.08, 15,331.44 and 9,453 is: 13,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.08 : 15,331.44 = 9,453 : x
  2. Step 2: Convert to fraction form
    11,135.08/15,331.44 = 9,453/x
  3. Step 3: Cross multiply
    11,135.08x = 15,331.44 × 9,453
  4. Step 4: Simplify right side
    11,135.08x = 144,928,102.32
  5. Step 5: Solve for x
    x = 144,928,102.32/11,135.08
  6. Step 6: Final answer
    x = 13,015.45

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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.