Home / 18,941.32-26,139.64-10,443.80

Finding the Fourth Proportional to 18,941.32, 26,139.64 and 10,443.80

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Solution

The fourth proportional to 18,941.32, 26,139.64 and 10,443.80 is: 14,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.32 : 26,139.64 = 10,443.80 : x
  2. Step 2: Convert to fraction form
    18,941.32/26,139.64 = 10,443.80/x
  3. Step 3: Cross multiply
    18,941.32x = 26,139.64 × 10,443.80
  4. Step 4: Simplify right side
    18,941.32x = 272,997,172.23
  5. Step 5: Solve for x
    x = 272,997,172.23/18,941.32
  6. Step 6: Final answer
    x = 14,412.78

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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.