Home / 14,666.30-20,238.18-8,615.60

Finding the Fourth Proportional to 14,666.30, 20,238.18 and 8,615.60

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Solution

The fourth proportional to 14,666.30, 20,238.18 and 8,615.60 is: 11,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.30 : 20,238.18 = 8,615.60 : x
  2. Step 2: Convert to fraction form
    14,666.30/20,238.18 = 8,615.60/x
  3. Step 3: Cross multiply
    14,666.30x = 20,238.18 × 8,615.60
  4. Step 4: Simplify right side
    14,666.30x = 174,364,063.61
  5. Step 5: Solve for x
    x = 174,364,063.61/14,666.30
  6. Step 6: Final answer
    x = 11,888.76

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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.