Home / 19,117.94-28,665.75-7,417.49

Finding the Fourth Proportional to 19,117.94, 28,665.75 and 7,417.49

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Solution

The fourth proportional to 19,117.94, 28,665.75 and 7,417.49 is: 11,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.94 : 28,665.75 = 7,417.49 : x
  2. Step 2: Convert to fraction form
    19,117.94/28,665.75 = 7,417.49/x
  3. Step 3: Cross multiply
    19,117.94x = 28,665.75 × 7,417.49
  4. Step 4: Simplify right side
    19,117.94x = 212,627,913.97
  5. Step 5: Solve for x
    x = 212,627,913.97/19,117.94
  6. Step 6: Final answer
    x = 11,121.91

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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.