Home / 14,905.76-20,569.04-8,190.08

Finding the Fourth Proportional to 14,905.76, 20,569.04 and 8,190.08

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Solution

The fourth proportional to 14,905.76, 20,569.04 and 8,190.08 is: 11,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.76 : 20,569.04 = 8,190.08 : x
  2. Step 2: Convert to fraction form
    14,905.76/20,569.04 = 8,190.08/x
  3. Step 3: Cross multiply
    14,905.76x = 20,569.04 × 8,190.08
  4. Step 4: Simplify right side
    14,905.76x = 168,462,083.12
  5. Step 5: Solve for x
    x = 168,462,083.12/14,905.76
  6. Step 6: Final answer
    x = 11,301.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.