Home / 12,577.36-17,359.60-8,328.58

Finding the Fourth Proportional to 12,577.36, 17,359.60 and 8,328.58

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Solution

The fourth proportional to 12,577.36, 17,359.60 and 8,328.58 is: 11,495.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.36 : 17,359.60 = 8,328.58 : x
  2. Step 2: Convert to fraction form
    12,577.36/17,359.60 = 8,328.58/x
  3. Step 3: Cross multiply
    12,577.36x = 17,359.60 × 8,328.58
  4. Step 4: Simplify right side
    12,577.36x = 144,580,817.37
  5. Step 5: Solve for x
    x = 144,580,817.37/12,577.36
  6. Step 6: Final answer
    x = 11,495.32

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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.