Home / 14,142.93-19,516.60-8,480.79

Finding the Fourth Proportional to 14,142.93, 19,516.60 and 8,480.79

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Solution

The fourth proportional to 14,142.93, 19,516.60 and 8,480.79 is: 11,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.93 : 19,516.60 = 8,480.79 : x
  2. Step 2: Convert to fraction form
    14,142.93/19,516.60 = 8,480.79/x
  3. Step 3: Cross multiply
    14,142.93x = 19,516.60 × 8,480.79
  4. Step 4: Simplify right side
    14,142.93x = 165,516,196.71
  5. Step 5: Solve for x
    x = 165,516,196.71/14,142.93
  6. Step 6: Final answer
    x = 11,703.11

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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.