Home / 14,619.96-20,179.80-9,312.84

Finding the Fourth Proportional to 14,619.96, 20,179.80 and 9,312.84

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Solution

The fourth proportional to 14,619.96, 20,179.80 and 9,312.84 is: 12,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.96 : 20,179.80 = 9,312.84 : x
  2. Step 2: Convert to fraction form
    14,619.96/20,179.80 = 9,312.84/x
  3. Step 3: Cross multiply
    14,619.96x = 20,179.80 × 9,312.84
  4. Step 4: Simplify right side
    14,619.96x = 187,931,248.63
  5. Step 5: Solve for x
    x = 187,931,248.63/14,619.96
  6. Step 6: Final answer
    x = 12,854.43

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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.