Home / 12,577.37-17,357.15-9,428.09

Finding the Fourth Proportional to 12,577.37, 17,357.15 and 9,428.09

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Solution

The fourth proportional to 12,577.37, 17,357.15 and 9,428.09 is: 13,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.37 : 17,357.15 = 9,428.09 : x
  2. Step 2: Convert to fraction form
    12,577.37/17,357.15 = 9,428.09/x
  3. Step 3: Cross multiply
    12,577.37x = 17,357.15 × 9,428.09
  4. Step 4: Simplify right side
    12,577.37x = 163,644,709.13
  5. Step 5: Solve for x
    x = 163,644,709.13/12,577.37
  6. Step 6: Final answer
    x = 13,011.05

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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.