Home / 13,968.50-19,277.07-7,680.74

Finding the Fourth Proportional to 13,968.50, 19,277.07 and 7,680.74

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Solution

The fourth proportional to 13,968.50, 19,277.07 and 7,680.74 is: 10,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.50 : 19,277.07 = 7,680.74 : x
  2. Step 2: Convert to fraction form
    13,968.50/19,277.07 = 7,680.74/x
  3. Step 3: Cross multiply
    13,968.50x = 19,277.07 × 7,680.74
  4. Step 4: Simplify right side
    13,968.50x = 148,062,162.63
  5. Step 5: Solve for x
    x = 148,062,162.63/13,968.50
  6. Step 6: Final answer
    x = 10,599.72

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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.