Home / 15,657.35-21,607.13-8,583.62

Finding the Fourth Proportional to 15,657.35, 21,607.13 and 8,583.62

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Solution

The fourth proportional to 15,657.35, 21,607.13 and 8,583.62 is: 11,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.35 : 21,607.13 = 8,583.62 : x
  2. Step 2: Convert to fraction form
    15,657.35/21,607.13 = 8,583.62/x
  3. Step 3: Cross multiply
    15,657.35x = 21,607.13 × 8,583.62
  4. Step 4: Simplify right side
    15,657.35x = 185,467,393.21
  5. Step 5: Solve for x
    x = 185,467,393.21/15,657.35
  6. Step 6: Final answer
    x = 11,845.39

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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.