Home / 12,365.12-18,553.76-5,790.17

Finding the Fourth Proportional to 12,365.12, 18,553.76 and 5,790.17

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Solution

The fourth proportional to 12,365.12, 18,553.76 and 5,790.17 is: 8,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.12 : 18,553.76 = 5,790.17 : x
  2. Step 2: Convert to fraction form
    12,365.12/18,553.76 = 5,790.17/x
  3. Step 3: Cross multiply
    12,365.12x = 18,553.76 × 5,790.17
  4. Step 4: Simplify right side
    12,365.12x = 107,429,346.25
  5. Step 5: Solve for x
    x = 107,429,346.25/12,365.12
  6. Step 6: Final answer
    x = 8,688.10

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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.