Home / 18,400.95-25,393.43-10,443.31

Finding the Fourth Proportional to 18,400.95, 25,393.43 and 10,443.31

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Solution

The fourth proportional to 18,400.95, 25,393.43 and 10,443.31 is: 14,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.95 : 25,393.43 = 10,443.31 : x
  2. Step 2: Convert to fraction form
    18,400.95/25,393.43 = 10,443.31/x
  3. Step 3: Cross multiply
    18,400.95x = 25,393.43 × 10,443.31
  4. Step 4: Simplify right side
    18,400.95x = 265,191,424.08
  5. Step 5: Solve for x
    x = 265,191,424.08/18,400.95
  6. Step 6: Final answer
    x = 14,411.83

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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.