Home / 15,176.23-20,953.98-12,664.82

Finding the Fourth Proportional to 15,176.23, 20,953.98 and 12,664.82

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Solution

The fourth proportional to 15,176.23, 20,953.98 and 12,664.82 is: 17,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.23 : 20,953.98 = 12,664.82 : x
  2. Step 2: Convert to fraction form
    15,176.23/20,953.98 = 12,664.82/x
  3. Step 3: Cross multiply
    15,176.23x = 20,953.98 × 12,664.82
  4. Step 4: Simplify right side
    15,176.23x = 265,378,321.66
  5. Step 5: Solve for x
    x = 265,378,321.66/15,176.23
  6. Step 6: Final answer
    x = 17,486.45

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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.