Home / 19,910.04-29,865.06-5,118.97

Finding the Fourth Proportional to 19,910.04, 29,865.06 and 5,118.97

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Solution

The fourth proportional to 19,910.04, 29,865.06 and 5,118.97 is: 7,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.04 : 29,865.06 = 5,118.97 : x
  2. Step 2: Convert to fraction form
    19,910.04/29,865.06 = 5,118.97/x
  3. Step 3: Cross multiply
    19,910.04x = 29,865.06 × 5,118.97
  4. Step 4: Simplify right side
    19,910.04x = 152,878,346.19
  5. Step 5: Solve for x
    x = 152,878,346.19/19,910.04
  6. Step 6: Final answer
    x = 7,678.46

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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.