Home / 13,070.67-19,568.74-8,679.39

Finding the Fourth Proportional to 13,070.67, 19,568.74 and 8,679.39

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Solution

The fourth proportional to 13,070.67, 19,568.74 and 8,679.39 is: 12,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.67 : 19,568.74 = 8,679.39 : x
  2. Step 2: Convert to fraction form
    13,070.67/19,568.74 = 8,679.39/x
  3. Step 3: Cross multiply
    13,070.67x = 19,568.74 × 8,679.39
  4. Step 4: Simplify right side
    13,070.67x = 169,844,726.27
  5. Step 5: Solve for x
    x = 169,844,726.27/13,070.67
  6. Step 6: Final answer
    x = 12,994.34

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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.