Home / 12,539.32-17,308.74-8,557.58

Finding the Fourth Proportional to 12,539.32, 17,308.74 and 8,557.58

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Solution

The fourth proportional to 12,539.32, 17,308.74 and 8,557.58 is: 11,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.32 : 17,308.74 = 8,557.58 : x
  2. Step 2: Convert to fraction form
    12,539.32/17,308.74 = 8,557.58/x
  3. Step 3: Cross multiply
    12,539.32x = 17,308.74 × 8,557.58
  4. Step 4: Simplify right side
    12,539.32x = 148,120,927.25
  5. Step 5: Solve for x
    x = 148,120,927.25/12,539.32
  6. Step 6: Final answer
    x = 11,812.52

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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.