Home / 15,465.96-21,342.45-8,392.23

Finding the Fourth Proportional to 15,465.96, 21,342.45 and 8,392.23

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Solution

The fourth proportional to 15,465.96, 21,342.45 and 8,392.23 is: 11,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.96 : 21,342.45 = 8,392.23 : x
  2. Step 2: Convert to fraction form
    15,465.96/21,342.45 = 8,392.23/x
  3. Step 3: Cross multiply
    15,465.96x = 21,342.45 × 8,392.23
  4. Step 4: Simplify right side
    15,465.96x = 179,110,749.16
  5. Step 5: Solve for x
    x = 179,110,749.16/15,465.96
  6. Step 6: Final answer
    x = 11,580.97

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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.