Home / 12,365.76-18,550.96-4,970.78

Finding the Fourth Proportional to 12,365.76, 18,550.96 and 4,970.78

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Solution

The fourth proportional to 12,365.76, 18,550.96 and 4,970.78 is: 7,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.76 : 18,550.96 = 4,970.78 : x
  2. Step 2: Convert to fraction form
    12,365.76/18,550.96 = 4,970.78/x
  3. Step 3: Cross multiply
    12,365.76x = 18,550.96 × 4,970.78
  4. Step 4: Simplify right side
    12,365.76x = 92,212,740.95
  5. Step 5: Solve for x
    x = 92,212,740.95/12,365.76
  6. Step 6: Final answer
    x = 7,457.10

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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.