Home / 13,029.08-19,498.20-10,661.72

Finding the Fourth Proportional to 13,029.08, 19,498.20 and 10,661.72

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Solution

The fourth proportional to 13,029.08, 19,498.20 and 10,661.72 is: 15,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.08 : 19,498.20 = 10,661.72 : x
  2. Step 2: Convert to fraction form
    13,029.08/19,498.20 = 10,661.72/x
  3. Step 3: Cross multiply
    13,029.08x = 19,498.20 × 10,661.72
  4. Step 4: Simplify right side
    13,029.08x = 207,884,348.90
  5. Step 5: Solve for x
    x = 207,884,348.90/13,029.08
  6. Step 6: Final answer
    x = 15,955.41

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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.