Home / 19,138.48-26,411.46-10,641.30

Finding the Fourth Proportional to 19,138.48, 26,411.46 and 10,641.30

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Solution

The fourth proportional to 19,138.48, 26,411.46 and 10,641.30 is: 14,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.48 : 26,411.46 = 10,641.30 : x
  2. Step 2: Convert to fraction form
    19,138.48/26,411.46 = 10,641.30/x
  3. Step 3: Cross multiply
    19,138.48x = 26,411.46 × 10,641.30
  4. Step 4: Simplify right side
    19,138.48x = 281,052,269.30
  5. Step 5: Solve for x
    x = 281,052,269.30/19,138.48
  6. Step 6: Final answer
    x = 14,685.19

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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.