Home / 12,369.60-18,550.56-4,970.16

Finding the Fourth Proportional to 12,369.60, 18,550.56 and 4,970.16

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Solution

The fourth proportional to 12,369.60, 18,550.56 and 4,970.16 is: 7,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.60 : 18,550.56 = 4,970.16 : x
  2. Step 2: Convert to fraction form
    12,369.60/18,550.56 = 4,970.16/x
  3. Step 3: Cross multiply
    12,369.60x = 18,550.56 × 4,970.16
  4. Step 4: Simplify right side
    12,369.60x = 92,199,251.29
  5. Step 5: Solve for x
    x = 92,199,251.29/12,369.60
  6. Step 6: Final answer
    x = 7,453.70

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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.