Home / 13,969.38-19,276.94-7,681.76

Finding the Fourth Proportional to 13,969.38, 19,276.94 and 7,681.76

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Solution

The fourth proportional to 13,969.38, 19,276.94 and 7,681.76 is: 10,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.38 : 19,276.94 = 7,681.76 : x
  2. Step 2: Convert to fraction form
    13,969.38/19,276.94 = 7,681.76/x
  3. Step 3: Cross multiply
    13,969.38x = 19,276.94 × 7,681.76
  4. Step 4: Simplify right side
    13,969.38x = 148,080,826.61
  5. Step 5: Solve for x
    x = 148,080,826.61/13,969.38
  6. Step 6: Final answer
    x = 10,600.39

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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.