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Finding the Fourth Proportional to 15,651, 21,598.58 and 8,577.68

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Solution

The fourth proportional to 15,651, 21,598.58 and 8,577.68 is: 11,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651 : 21,598.58 = 8,577.68 : x
  2. Step 2: Convert to fraction form
    15,651/21,598.58 = 8,577.68/x
  3. Step 3: Cross multiply
    15,651x = 21,598.58 × 8,577.68
  4. Step 4: Simplify right side
    15,651x = 185,265,621.15
  5. Step 5: Solve for x
    x = 185,265,621.15/15,651
  6. Step 6: Final answer
    x = 11,837.30

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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.