Home / 13,888.76-20,833.28-3,500.51

Finding the Fourth Proportional to 13,888.76, 20,833.28 and 3,500.51

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Solution

The fourth proportional to 13,888.76, 20,833.28 and 3,500.51 is: 5,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.76 : 20,833.28 = 3,500.51 : x
  2. Step 2: Convert to fraction form
    13,888.76/20,833.28 = 3,500.51/x
  3. Step 3: Cross multiply
    13,888.76x = 20,833.28 × 3,500.51
  4. Step 4: Simplify right side
    13,888.76x = 72,927,087.47
  5. Step 5: Solve for x
    x = 72,927,087.47/13,888.76
  6. Step 6: Final answer
    x = 5,250.80

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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.