Home / 19,147.16-28,712.94-6,664.53

Finding the Fourth Proportional to 19,147.16, 28,712.94 and 6,664.53

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Solution

The fourth proportional to 19,147.16, 28,712.94 and 6,664.53 is: 9,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.16 : 28,712.94 = 6,664.53 : x
  2. Step 2: Convert to fraction form
    19,147.16/28,712.94 = 6,664.53/x
  3. Step 3: Cross multiply
    19,147.16x = 28,712.94 × 6,664.53
  4. Step 4: Simplify right side
    19,147.16x = 191,358,250.02
  5. Step 5: Solve for x
    x = 191,358,250.02/19,147.16
  6. Step 6: Final answer
    x = 9,994.08

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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.