Home / 19,138.59-26,412.13-10,641.57

Finding the Fourth Proportional to 19,138.59, 26,412.13 and 10,641.57

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Solution

The fourth proportional to 19,138.59, 26,412.13 and 10,641.57 is: 14,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.59 : 26,412.13 = 10,641.57 : x
  2. Step 2: Convert to fraction form
    19,138.59/26,412.13 = 10,641.57/x
  3. Step 3: Cross multiply
    19,138.59x = 26,412.13 × 10,641.57
  4. Step 4: Simplify right side
    19,138.59x = 281,066,477.04
  5. Step 5: Solve for x
    x = 281,066,477.04/19,138.59
  6. Step 6: Final answer
    x = 14,685.85

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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.