Home / 13,345.94-20,031.02-7,111.26

Finding the Fourth Proportional to 13,345.94, 20,031.02 and 7,111.26

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Solution

The fourth proportional to 13,345.94, 20,031.02 and 7,111.26 is: 10,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.94 : 20,031.02 = 7,111.26 : x
  2. Step 2: Convert to fraction form
    13,345.94/20,031.02 = 7,111.26/x
  3. Step 3: Cross multiply
    13,345.94x = 20,031.02 × 7,111.26
  4. Step 4: Simplify right side
    13,345.94x = 142,445,755.73
  5. Step 5: Solve for x
    x = 142,445,755.73/13,345.94
  6. Step 6: Final answer
    x = 10,673.34

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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.