Home / 13,488.93-18,610.36-7,519.43

Finding the Fourth Proportional to 13,488.93, 18,610.36 and 7,519.43

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Solution

The fourth proportional to 13,488.93, 18,610.36 and 7,519.43 is: 10,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.93 : 18,610.36 = 7,519.43 : x
  2. Step 2: Convert to fraction form
    13,488.93/18,610.36 = 7,519.43/x
  3. Step 3: Cross multiply
    13,488.93x = 18,610.36 × 7,519.43
  4. Step 4: Simplify right side
    13,488.93x = 139,939,327.02
  5. Step 5: Solve for x
    x = 139,939,327.02/13,488.93
  6. Step 6: Final answer
    x = 10,374.38

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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.