Home / 13,218.72-19,826.64-9,952.80

Finding the Fourth Proportional to 13,218.72, 19,826.64 and 9,952.80

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Solution

The fourth proportional to 13,218.72, 19,826.64 and 9,952.80 is: 14,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.72 : 19,826.64 = 9,952.80 : x
  2. Step 2: Convert to fraction form
    13,218.72/19,826.64 = 9,952.80/x
  3. Step 3: Cross multiply
    13,218.72x = 19,826.64 × 9,952.80
  4. Step 4: Simplify right side
    13,218.72x = 197,330,582.59
  5. Step 5: Solve for x
    x = 197,330,582.59/13,218.72
  6. Step 6: Final answer
    x = 14,928.12

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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.