Home / 15,427.22-21,288.36-8,713.52

Finding the Fourth Proportional to 15,427.22, 21,288.36 and 8,713.52

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Solution

The fourth proportional to 15,427.22, 21,288.36 and 8,713.52 is: 12,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.22 : 21,288.36 = 8,713.52 : x
  2. Step 2: Convert to fraction form
    15,427.22/21,288.36 = 8,713.52/x
  3. Step 3: Cross multiply
    15,427.22x = 21,288.36 × 8,713.52
  4. Step 4: Simplify right side
    15,427.22x = 185,496,550.63
  5. Step 5: Solve for x
    x = 185,496,550.63/15,427.22
  6. Step 6: Final answer
    x = 12,023.98

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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.