Home / 19,307.36-26,634.69-12,145.95

Finding the Fourth Proportional to 19,307.36, 26,634.69 and 12,145.95

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Solution

The fourth proportional to 19,307.36, 26,634.69 and 12,145.95 is: 16,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.36 : 26,634.69 = 12,145.95 : x
  2. Step 2: Convert to fraction form
    19,307.36/26,634.69 = 12,145.95/x
  3. Step 3: Cross multiply
    19,307.36x = 26,634.69 × 12,145.95
  4. Step 4: Simplify right side
    19,307.36x = 323,503,613.01
  5. Step 5: Solve for x
    x = 323,503,613.01/19,307.36
  6. Step 6: Final answer
    x = 16,755.45

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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.