Home / 14,072.95-21,019.53-12,736.69

Finding the Fourth Proportional to 14,072.95, 21,019.53 and 12,736.69

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Solution

The fourth proportional to 14,072.95, 21,019.53 and 12,736.69 is: 19,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.95 : 21,019.53 = 12,736.69 : x
  2. Step 2: Convert to fraction form
    14,072.95/21,019.53 = 12,736.69/x
  3. Step 3: Cross multiply
    14,072.95x = 21,019.53 × 12,736.69
  4. Step 4: Simplify right side
    14,072.95x = 267,719,283.84
  5. Step 5: Solve for x
    x = 267,719,283.84/14,072.95
  6. Step 6: Final answer
    x = 19,023.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.