Home / 15,427.66-21,290.02-9,054.31

Finding the Fourth Proportional to 15,427.66, 21,290.02 and 9,054.31

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Solution

The fourth proportional to 15,427.66, 21,290.02 and 9,054.31 is: 12,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.66 : 21,290.02 = 9,054.31 : x
  2. Step 2: Convert to fraction form
    15,427.66/21,290.02 = 9,054.31/x
  3. Step 3: Cross multiply
    15,427.66x = 21,290.02 × 9,054.31
  4. Step 4: Simplify right side
    15,427.66x = 192,766,440.99
  5. Step 5: Solve for x
    x = 192,766,440.99/15,427.66
  6. Step 6: Final answer
    x = 12,494.86

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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.