Home / 14,740.72-20,341.70-8,771.02

Finding the Fourth Proportional to 14,740.72, 20,341.70 and 8,771.02

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Solution

The fourth proportional to 14,740.72, 20,341.70 and 8,771.02 is: 12,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.72 : 20,341.70 = 8,771.02 : x
  2. Step 2: Convert to fraction form
    14,740.72/20,341.70 = 8,771.02/x
  3. Step 3: Cross multiply
    14,740.72x = 20,341.70 × 8,771.02
  4. Step 4: Simplify right side
    14,740.72x = 178,417,457.53
  5. Step 5: Solve for x
    x = 178,417,457.53/14,740.72
  6. Step 6: Final answer
    x = 12,103.71

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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.