Home / 13,969.04-19,275.76-7,680.24

Finding the Fourth Proportional to 13,969.04, 19,275.76 and 7,680.24

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Solution

The fourth proportional to 13,969.04, 19,275.76 and 7,680.24 is: 10,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.04 : 19,275.76 = 7,680.24 : x
  2. Step 2: Convert to fraction form
    13,969.04/19,275.76 = 7,680.24/x
  3. Step 3: Cross multiply
    13,969.04x = 19,275.76 × 7,680.24
  4. Step 4: Simplify right side
    13,969.04x = 148,042,462.98
  5. Step 5: Solve for x
    x = 148,042,462.98/13,969.04
  6. Step 6: Final answer
    x = 10,597.90

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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.