Home / 13,352.96-18,427.77-7,688.52

Finding the Fourth Proportional to 13,352.96, 18,427.77 and 7,688.52

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Solution

The fourth proportional to 13,352.96, 18,427.77 and 7,688.52 is: 10,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.96 : 18,427.77 = 7,688.52 : x
  2. Step 2: Convert to fraction form
    13,352.96/18,427.77 = 7,688.52/x
  3. Step 3: Cross multiply
    13,352.96x = 18,427.77 × 7,688.52
  4. Step 4: Simplify right side
    13,352.96x = 141,682,278.20
  5. Step 5: Solve for x
    x = 141,682,278.20/13,352.96
  6. Step 6: Final answer
    x = 10,610.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.