Home / 19,751.47-29,638.89-7,280.17

Finding the Fourth Proportional to 19,751.47, 29,638.89 and 7,280.17

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Solution

The fourth proportional to 19,751.47, 29,638.89 and 7,280.17 is: 10,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.47 : 29,638.89 = 7,280.17 : x
  2. Step 2: Convert to fraction form
    19,751.47/29,638.89 = 7,280.17/x
  3. Step 3: Cross multiply
    19,751.47x = 29,638.89 × 7,280.17
  4. Step 4: Simplify right side
    19,751.47x = 215,776,083.71
  5. Step 5: Solve for x
    x = 215,776,083.71/19,751.47
  6. Step 6: Final answer
    x = 10,924.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.