Home / 13,352.51-20,040.87-7,117.76

Finding the Fourth Proportional to 13,352.51, 20,040.87 and 7,117.76

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Solution

The fourth proportional to 13,352.51, 20,040.87 and 7,117.76 is: 10,683.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.51 : 20,040.87 = 7,117.76 : x
  2. Step 2: Convert to fraction form
    13,352.51/20,040.87 = 7,117.76/x
  3. Step 3: Cross multiply
    13,352.51x = 20,040.87 × 7,117.76
  4. Step 4: Simplify right side
    13,352.51x = 142,646,102.85
  5. Step 5: Solve for x
    x = 142,646,102.85/13,352.51
  6. Step 6: Final answer
    x = 10,683.09

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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.