Home / 14,718.41-20,310.79-8,345.43

Finding the Fourth Proportional to 14,718.41, 20,310.79 and 8,345.43

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Solution

The fourth proportional to 14,718.41, 20,310.79 and 8,345.43 is: 11,516.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.41 : 20,310.79 = 8,345.43 : x
  2. Step 2: Convert to fraction form
    14,718.41/20,310.79 = 8,345.43/x
  3. Step 3: Cross multiply
    14,718.41x = 20,310.79 × 8,345.43
  4. Step 4: Simplify right side
    14,718.41x = 169,502,276.19
  5. Step 5: Solve for x
    x = 169,502,276.19/14,718.41
  6. Step 6: Final answer
    x = 11,516.34

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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.