Home / 18,941.47-26,139.43-10,443.61

Finding the Fourth Proportional to 18,941.47, 26,139.43 and 10,443.61

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Solution

The fourth proportional to 18,941.47, 26,139.43 and 10,443.61 is: 14,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.47 : 26,139.43 = 10,443.61 : x
  2. Step 2: Convert to fraction form
    18,941.47/26,139.43 = 10,443.61/x
  3. Step 3: Cross multiply
    18,941.47x = 26,139.43 × 10,443.61
  4. Step 4: Simplify right side
    18,941.47x = 272,990,014.13
  5. Step 5: Solve for x
    x = 272,990,014.13/18,941.47
  6. Step 6: Final answer
    x = 14,412.29

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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.