Home / 12,365.20-17,058.18-8,123.32

Finding the Fourth Proportional to 12,365.20, 17,058.18 and 8,123.32

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Solution

The fourth proportional to 12,365.20, 17,058.18 and 8,123.32 is: 11,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.20 : 17,058.18 = 8,123.32 : x
  2. Step 2: Convert to fraction form
    12,365.20/17,058.18 = 8,123.32/x
  3. Step 3: Cross multiply
    12,365.20x = 17,058.18 × 8,123.32
  4. Step 4: Simplify right side
    12,365.20x = 138,569,054.76
  5. Step 5: Solve for x
    x = 138,569,054.76/12,365.20
  6. Step 6: Final answer
    x = 11,206.37

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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.