Home / 15,327.48-21,145.44-8,953.56

Finding the Fourth Proportional to 15,327.48, 21,145.44 and 8,953.56

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Solution

The fourth proportional to 15,327.48, 21,145.44 and 8,953.56 is: 12,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.48 : 21,145.44 = 8,953.56 : x
  2. Step 2: Convert to fraction form
    15,327.48/21,145.44 = 8,953.56/x
  3. Step 3: Cross multiply
    15,327.48x = 21,145.44 × 8,953.56
  4. Step 4: Simplify right side
    15,327.48x = 189,326,965.77
  5. Step 5: Solve for x
    x = 189,326,965.77/15,327.48
  6. Step 6: Final answer
    x = 12,352.13

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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.