Home / 14,718.47-20,311.03-8,345.64

Finding the Fourth Proportional to 14,718.47, 20,311.03 and 8,345.64

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Solution

The fourth proportional to 14,718.47, 20,311.03 and 8,345.64 is: 11,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.47 : 20,311.03 = 8,345.64 : x
  2. Step 2: Convert to fraction form
    14,718.47/20,311.03 = 8,345.64/x
  3. Step 3: Cross multiply
    14,718.47x = 20,311.03 × 8,345.64
  4. Step 4: Simplify right side
    14,718.47x = 169,508,631.01
  5. Step 5: Solve for x
    x = 169,508,631.01/14,718.47
  6. Step 6: Final answer
    x = 11,516.73

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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.