Home / 14,703.56-20,291.82-8,415.80

Finding the Fourth Proportional to 14,703.56, 20,291.82 and 8,415.80

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Solution

The fourth proportional to 14,703.56, 20,291.82 and 8,415.80 is: 11,614.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.56 : 20,291.82 = 8,415.80 : x
  2. Step 2: Convert to fraction form
    14,703.56/20,291.82 = 8,415.80/x
  3. Step 3: Cross multiply
    14,703.56x = 20,291.82 × 8,415.80
  4. Step 4: Simplify right side
    14,703.56x = 170,771,898.76
  5. Step 5: Solve for x
    x = 170,771,898.76/14,703.56
  6. Step 6: Final answer
    x = 11,614.32

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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.