Home / 14,678.07-20,255.60-8,305.91

Finding the Fourth Proportional to 14,678.07, 20,255.60 and 8,305.91

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Solution

The fourth proportional to 14,678.07, 20,255.60 and 8,305.91 is: 11,462.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.07 : 20,255.60 = 8,305.91 : x
  2. Step 2: Convert to fraction form
    14,678.07/20,255.60 = 8,305.91/x
  3. Step 3: Cross multiply
    14,678.07x = 20,255.60 × 8,305.91
  4. Step 4: Simplify right side
    14,678.07x = 168,241,047.79
  5. Step 5: Solve for x
    x = 168,241,047.79/14,678.07
  6. Step 6: Final answer
    x = 11,462.07

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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.