Home / 12,461.05-18,688.40-3,693.92

Finding the Fourth Proportional to 12,461.05, 18,688.40 and 3,693.92

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Solution

The fourth proportional to 12,461.05, 18,688.40 and 3,693.92 is: 5,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.05 : 18,688.40 = 3,693.92 : x
  2. Step 2: Convert to fraction form
    12,461.05/18,688.40 = 3,693.92/x
  3. Step 3: Cross multiply
    12,461.05x = 18,688.40 × 3,693.92
  4. Step 4: Simplify right side
    12,461.05x = 69,033,454.53
  5. Step 5: Solve for x
    x = 69,033,454.53/12,461.05
  6. Step 6: Final answer
    x = 5,539.94

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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.