Home / 18,938.49-26,133.95-10,440.18

Finding the Fourth Proportional to 18,938.49, 26,133.95 and 10,440.18

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Solution

The fourth proportional to 18,938.49, 26,133.95 and 10,440.18 is: 14,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.49 : 26,133.95 = 10,440.18 : x
  2. Step 2: Convert to fraction form
    18,938.49/26,133.95 = 10,440.18/x
  3. Step 3: Cross multiply
    18,938.49x = 26,133.95 × 10,440.18
  4. Step 4: Simplify right side
    18,938.49x = 272,842,991.91
  5. Step 5: Solve for x
    x = 272,842,991.91/18,938.49
  6. Step 6: Final answer
    x = 14,406.79

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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.