Home / 13,554.56-20,320.14-5,240.40

Finding the Fourth Proportional to 13,554.56, 20,320.14 and 5,240.40

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Solution

The fourth proportional to 13,554.56, 20,320.14 and 5,240.40 is: 7,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.56 : 20,320.14 = 5,240.40 : x
  2. Step 2: Convert to fraction form
    13,554.56/20,320.14 = 5,240.40/x
  3. Step 3: Cross multiply
    13,554.56x = 20,320.14 × 5,240.40
  4. Step 4: Simplify right side
    13,554.56x = 106,485,661.66
  5. Step 5: Solve for x
    x = 106,485,661.66/13,554.56
  6. Step 6: Final answer
    x = 7,856.08

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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.