Home / 15,698.60-21,663.36-8,625.12

Finding the Fourth Proportional to 15,698.60, 21,663.36 and 8,625.12

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Solution

The fourth proportional to 15,698.60, 21,663.36 and 8,625.12 is: 11,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.60 : 21,663.36 = 8,625.12 : x
  2. Step 2: Convert to fraction form
    15,698.60/21,663.36 = 8,625.12/x
  3. Step 3: Cross multiply
    15,698.60x = 21,663.36 × 8,625.12
  4. Step 4: Simplify right side
    15,698.60x = 186,849,079.60
  5. Step 5: Solve for x
    x = 186,849,079.60/15,698.60
  6. Step 6: Final answer
    x = 11,902.28

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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.