Home / 14,740.85-20,343.04-8,691.35

Finding the Fourth Proportional to 14,740.85, 20,343.04 and 8,691.35

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Solution

The fourth proportional to 14,740.85, 20,343.04 and 8,691.35 is: 11,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.85 : 20,343.04 = 8,691.35 : x
  2. Step 2: Convert to fraction form
    14,740.85/20,343.04 = 8,691.35/x
  3. Step 3: Cross multiply
    14,740.85x = 20,343.04 × 8,691.35
  4. Step 4: Simplify right side
    14,740.85x = 176,808,357.26
  5. Step 5: Solve for x
    x = 176,808,357.26/14,740.85
  6. Step 6: Final answer
    x = 11,994.45

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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.