Home / 18,938.20-26,133.67-10,440.31

Finding the Fourth Proportional to 18,938.20, 26,133.67 and 10,440.31

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Solution

The fourth proportional to 18,938.20, 26,133.67 and 10,440.31 is: 14,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.20 : 26,133.67 = 10,440.31 : x
  2. Step 2: Convert to fraction form
    18,938.20/26,133.67 = 10,440.31/x
  3. Step 3: Cross multiply
    18,938.20x = 26,133.67 × 10,440.31
  4. Step 4: Simplify right side
    18,938.20x = 272,843,616.24
  5. Step 5: Solve for x
    x = 272,843,616.24/18,938.20
  6. Step 6: Final answer
    x = 14,407.05

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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.