Home / 13,968.30-19,275.66-7,680.66

Finding the Fourth Proportional to 13,968.30, 19,275.66 and 7,680.66

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Solution

The fourth proportional to 13,968.30, 19,275.66 and 7,680.66 is: 10,598.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.30 : 19,275.66 = 7,680.66 : x
  2. Step 2: Convert to fraction form
    13,968.30/19,275.66 = 7,680.66/x
  3. Step 3: Cross multiply
    13,968.30x = 19,275.66 × 7,680.66
  4. Step 4: Simplify right side
    13,968.30x = 148,049,790.74
  5. Step 5: Solve for x
    x = 148,049,790.74/13,968.30
  6. Step 6: Final answer
    x = 10,598.98

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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.