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Finding the Fourth Proportional to 14,871.74, 20,524.71 and 8,903.40

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Solution

The fourth proportional to 14,871.74, 20,524.71 and 8,903.40 is: 12,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.74 : 20,524.71 = 8,903.40 : x
  2. Step 2: Convert to fraction form
    14,871.74/20,524.71 = 8,903.40/x
  3. Step 3: Cross multiply
    14,871.74x = 20,524.71 × 8,903.40
  4. Step 4: Simplify right side
    14,871.74x = 182,739,658.50
  5. Step 5: Solve for x
    x = 182,739,658.50/14,871.74
  6. Step 6: Final answer
    x = 12,287.72

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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.