Home / 19,812.80-29,717.40-6,663.44

Finding the Fourth Proportional to 19,812.80, 29,717.40 and 6,663.44

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Solution

The fourth proportional to 19,812.80, 29,717.40 and 6,663.44 is: 9,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.80 : 29,717.40 = 6,663.44 : x
  2. Step 2: Convert to fraction form
    19,812.80/29,717.40 = 6,663.44/x
  3. Step 3: Cross multiply
    19,812.80x = 29,717.40 × 6,663.44
  4. Step 4: Simplify right side
    19,812.80x = 198,020,111.86
  5. Step 5: Solve for x
    x = 198,020,111.86/19,812.80
  6. Step 6: Final answer
    x = 9,994.55

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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.