Home / 15,650.78-21,598.63-8,577.20

Finding the Fourth Proportional to 15,650.78, 21,598.63 and 8,577.20

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Solution

The fourth proportional to 15,650.78, 21,598.63 and 8,577.20 is: 11,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.78 : 21,598.63 = 8,577.20 : x
  2. Step 2: Convert to fraction form
    15,650.78/21,598.63 = 8,577.20/x
  3. Step 3: Cross multiply
    15,650.78x = 21,598.63 × 8,577.20
  4. Step 4: Simplify right side
    15,650.78x = 185,255,801.79
  5. Step 5: Solve for x
    x = 185,255,801.79/15,650.78
  6. Step 6: Final answer
    x = 11,836.84

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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.