Home / 15,698.35-21,664.18-8,986.13

Finding the Fourth Proportional to 15,698.35, 21,664.18 and 8,986.13

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Solution

The fourth proportional to 15,698.35, 21,664.18 and 8,986.13 is: 12,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.35 : 21,664.18 = 8,986.13 : x
  2. Step 2: Convert to fraction form
    15,698.35/21,664.18 = 8,986.13/x
  3. Step 3: Cross multiply
    15,698.35x = 21,664.18 × 8,986.13
  4. Step 4: Simplify right side
    15,698.35x = 194,677,203.22
  5. Step 5: Solve for x
    x = 194,677,203.22/15,698.35
  6. Step 6: Final answer
    x = 12,401.13

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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.