Home / 13,155.27-19,733.94-4,390.18

Finding the Fourth Proportional to 13,155.27, 19,733.94 and 4,390.18

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Solution

The fourth proportional to 13,155.27, 19,733.94 and 4,390.18 is: 6,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.27 : 19,733.94 = 4,390.18 : x
  2. Step 2: Convert to fraction form
    13,155.27/19,733.94 = 4,390.18/x
  3. Step 3: Cross multiply
    13,155.27x = 19,733.94 × 4,390.18
  4. Step 4: Simplify right side
    13,155.27x = 86,635,548.71
  5. Step 5: Solve for x
    x = 86,635,548.71/13,155.27
  6. Step 6: Final answer
    x = 6,585.62

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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.