Home / 12,988.76-19,447.94-6,735.66

Finding the Fourth Proportional to 12,988.76, 19,447.94 and 6,735.66

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Solution

The fourth proportional to 12,988.76, 19,447.94 and 6,735.66 is: 10,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.76 : 19,447.94 = 6,735.66 : x
  2. Step 2: Convert to fraction form
    12,988.76/19,447.94 = 6,735.66/x
  3. Step 3: Cross multiply
    12,988.76x = 19,447.94 × 6,735.66
  4. Step 4: Simplify right side
    12,988.76x = 130,994,655.45
  5. Step 5: Solve for x
    x = 130,994,655.45/12,988.76
  6. Step 6: Final answer
    x = 10,085.23

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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.