Home / 13,233.28-18,261.84-7,928.32

Finding the Fourth Proportional to 13,233.28, 18,261.84 and 7,928.32

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Solution

The fourth proportional to 13,233.28, 18,261.84 and 7,928.32 is: 10,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,233.28 : 18,261.84 = 7,928.32 : x
  2. Step 2: Convert to fraction form
    13,233.28/18,261.84 = 7,928.32/x
  3. Step 3: Cross multiply
    13,233.28x = 18,261.84 × 7,928.32
  4. Step 4: Simplify right side
    13,233.28x = 144,785,711.31
  5. Step 5: Solve for x
    x = 144,785,711.31/13,233.28
  6. Step 6: Final answer
    x = 10,941.03

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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.