Home / 19,367.16-26,716.80-12,656.72

Finding the Fourth Proportional to 19,367.16, 26,716.80 and 12,656.72

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Solution

The fourth proportional to 19,367.16, 26,716.80 and 12,656.72 is: 17,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.16 : 26,716.80 = 12,656.72 : x
  2. Step 2: Convert to fraction form
    19,367.16/26,716.80 = 12,656.72/x
  3. Step 3: Cross multiply
    19,367.16x = 26,716.80 × 12,656.72
  4. Step 4: Simplify right side
    19,367.16x = 338,147,056.90
  5. Step 5: Solve for x
    x = 338,147,056.90/19,367.16
  6. Step 6: Final answer
    x = 17,459.82

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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.