Home / 18,681.84-28,021.77-6,994.17

Finding the Fourth Proportional to 18,681.84, 28,021.77 and 6,994.17

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Solution

The fourth proportional to 18,681.84, 28,021.77 and 6,994.17 is: 10,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.84 : 28,021.77 = 6,994.17 : x
  2. Step 2: Convert to fraction form
    18,681.84/28,021.77 = 6,994.17/x
  3. Step 3: Cross multiply
    18,681.84x = 28,021.77 × 6,994.17
  4. Step 4: Simplify right side
    18,681.84x = 195,989,023.08
  5. Step 5: Solve for x
    x = 195,989,023.08/18,681.84
  6. Step 6: Final answer
    x = 10,490.88

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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.