Home / 12,532.40-18,798.90-4,212.70

Finding the Fourth Proportional to 12,532.40, 18,798.90 and 4,212.70

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Solution

The fourth proportional to 12,532.40, 18,798.90 and 4,212.70 is: 6,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.40 : 18,798.90 = 4,212.70 : x
  2. Step 2: Convert to fraction form
    12,532.40/18,798.90 = 4,212.70/x
  3. Step 3: Cross multiply
    12,532.40x = 18,798.90 × 4,212.70
  4. Step 4: Simplify right side
    12,532.40x = 79,194,126.03
  5. Step 5: Solve for x
    x = 79,194,126.03/12,532.40
  6. Step 6: Final answer
    x = 6,319.15

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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.