Home / 12,902.85-19,336.05-9,002.70

Finding the Fourth Proportional to 12,902.85, 19,336.05 and 9,002.70

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Solution

The fourth proportional to 12,902.85, 19,336.05 and 9,002.70 is: 13,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.85 : 19,336.05 = 9,002.70 : x
  2. Step 2: Convert to fraction form
    12,902.85/19,336.05 = 9,002.70/x
  3. Step 3: Cross multiply
    12,902.85x = 19,336.05 × 9,002.70
  4. Step 4: Simplify right side
    12,902.85x = 174,076,657.34
  5. Step 5: Solve for x
    x = 174,076,657.34/12,902.85
  6. Step 6: Final answer
    x = 13,491.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.