Home / 14,615.04-20,167.20-8,646.96

Finding the Fourth Proportional to 14,615.04, 20,167.20 and 8,646.96

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Solution

The fourth proportional to 14,615.04, 20,167.20 and 8,646.96 is: 11,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.04 : 20,167.20 = 8,646.96 : x
  2. Step 2: Convert to fraction form
    14,615.04/20,167.20 = 8,646.96/x
  3. Step 3: Cross multiply
    14,615.04x = 20,167.20 × 8,646.96
  4. Step 4: Simplify right side
    14,615.04x = 174,384,971.71
  5. Step 5: Solve for x
    x = 174,384,971.71/14,615.04
  6. Step 6: Final answer
    x = 11,931.88

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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.