Home / 14,575.89-20,114.91-8,288.25

Finding the Fourth Proportional to 14,575.89, 20,114.91 and 8,288.25

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Solution

The fourth proportional to 14,575.89, 20,114.91 and 8,288.25 is: 11,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,575.89 : 20,114.91 = 8,288.25 : x
  2. Step 2: Convert to fraction form
    14,575.89/20,114.91 = 8,288.25/x
  3. Step 3: Cross multiply
    14,575.89x = 20,114.91 × 8,288.25
  4. Step 4: Simplify right side
    14,575.89x = 166,717,402.81
  5. Step 5: Solve for x
    x = 166,717,402.81/14,575.89
  6. Step 6: Final answer
    x = 11,437.89

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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.