Home / 13,063.95-18,029.58-7,688.49

Finding the Fourth Proportional to 13,063.95, 18,029.58 and 7,688.49

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Solution

The fourth proportional to 13,063.95, 18,029.58 and 7,688.49 is: 10,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.95 : 18,029.58 = 7,688.49 : x
  2. Step 2: Convert to fraction form
    13,063.95/18,029.58 = 7,688.49/x
  3. Step 3: Cross multiply
    13,063.95x = 18,029.58 × 7,688.49
  4. Step 4: Simplify right side
    13,063.95x = 138,620,245.53
  5. Step 5: Solve for x
    x = 138,620,245.53/13,063.95
  6. Step 6: Final answer
    x = 10,610.90

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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.