Home / 19,143.56-26,418.08-10,645.45

Finding the Fourth Proportional to 19,143.56, 26,418.08 and 10,645.45

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Solution

The fourth proportional to 19,143.56, 26,418.08 and 10,645.45 is: 14,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.56 : 26,418.08 = 10,645.45 : x
  2. Step 2: Convert to fraction form
    19,143.56/26,418.08 = 10,645.45/x
  3. Step 3: Cross multiply
    19,143.56x = 26,418.08 × 10,645.45
  4. Step 4: Simplify right side
    19,143.56x = 281,232,310.30
  5. Step 5: Solve for x
    x = 281,232,310.30/19,143.56
  6. Step 6: Final answer
    x = 14,690.70

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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.