Home / 15,498.94-21,388.61-8,425.35

Finding the Fourth Proportional to 15,498.94, 21,388.61 and 8,425.35

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Solution

The fourth proportional to 15,498.94, 21,388.61 and 8,425.35 is: 11,627.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.94 : 21,388.61 = 8,425.35 : x
  2. Step 2: Convert to fraction form
    15,498.94/21,388.61 = 8,425.35/x
  3. Step 3: Cross multiply
    15,498.94x = 21,388.61 × 8,425.35
  4. Step 4: Simplify right side
    15,498.94x = 180,206,376.19
  5. Step 5: Solve for x
    x = 180,206,376.19/15,498.94
  6. Step 6: Final answer
    x = 11,627.01

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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.