Home / 18,470.84-25,426.91-13,987.49

Finding the Fourth Proportional to 18,470.84, 25,426.91 and 13,987.49

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Solution

The fourth proportional to 18,470.84, 25,426.91 and 13,987.49 is: 19,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.84 : 25,426.91 = 13,987.49 : x
  2. Step 2: Convert to fraction form
    18,470.84/25,426.91 = 13,987.49/x
  3. Step 3: Cross multiply
    18,470.84x = 25,426.91 × 13,987.49
  4. Step 4: Simplify right side
    18,470.84x = 355,658,557.19
  5. Step 5: Solve for x
    x = 355,658,557.19/18,470.84
  6. Step 6: Final answer
    x = 19,255.14

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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.