Home / 13,653.40-20,476.10-5,331.52

Finding the Fourth Proportional to 13,653.40, 20,476.10 and 5,331.52

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Solution

The fourth proportional to 13,653.40, 20,476.10 and 5,331.52 is: 7,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.40 : 20,476.10 = 5,331.52 : x
  2. Step 2: Convert to fraction form
    13,653.40/20,476.10 = 5,331.52/x
  3. Step 3: Cross multiply
    13,653.40x = 20,476.10 × 5,331.52
  4. Step 4: Simplify right side
    13,653.40x = 109,168,736.67
  5. Step 5: Solve for x
    x = 109,168,736.67/13,653.40
  6. Step 6: Final answer
    x = 7,995.72

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1.5x scale

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.