Home / 12,688.38-19,034.60-4,366.35

Finding the Fourth Proportional to 12,688.38, 19,034.60 and 4,366.35

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Solution

The fourth proportional to 12,688.38, 19,034.60 and 4,366.35 is: 6,550.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.38 : 19,034.60 = 4,366.35 : x
  2. Step 2: Convert to fraction form
    12,688.38/19,034.60 = 4,366.35/x
  3. Step 3: Cross multiply
    12,688.38x = 19,034.60 × 4,366.35
  4. Step 4: Simplify right side
    12,688.38x = 83,111,703.88
  5. Step 5: Solve for x
    x = 83,111,703.88/12,688.38
  6. Step 6: Final answer
    x = 6,550.22

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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.