Home / 18,810.48-28,212.66-6,969.84

Finding the Fourth Proportional to 18,810.48, 28,212.66 and 6,969.84

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Solution

The fourth proportional to 18,810.48, 28,212.66 and 6,969.84 is: 10,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.48 : 28,212.66 = 6,969.84 : x
  2. Step 2: Convert to fraction form
    18,810.48/28,212.66 = 6,969.84/x
  3. Step 3: Cross multiply
    18,810.48x = 28,212.66 × 6,969.84
  4. Step 4: Simplify right side
    18,810.48x = 196,637,726.17
  5. Step 5: Solve for x
    x = 196,637,726.17/18,810.48
  6. Step 6: Final answer
    x = 10,453.63

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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.