Home / 13,648.48-20,468.40-6,722.08

Finding the Fourth Proportional to 13,648.48, 20,468.40 and 6,722.08

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Solution

The fourth proportional to 13,648.48, 20,468.40 and 6,722.08 is: 10,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.48 : 20,468.40 = 6,722.08 : x
  2. Step 2: Convert to fraction form
    13,648.48/20,468.40 = 6,722.08/x
  3. Step 3: Cross multiply
    13,648.48x = 20,468.40 × 6,722.08
  4. Step 4: Simplify right side
    13,648.48x = 137,590,222.27
  5. Step 5: Solve for x
    x = 137,590,222.27/13,648.48
  6. Step 6: Final answer
    x = 10,080.99

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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.