Home / 18,852.48-28,278.70-4,812.51

Finding the Fourth Proportional to 18,852.48, 28,278.70 and 4,812.51

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Solution

The fourth proportional to 18,852.48, 28,278.70 and 4,812.51 is: 7,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.48 : 28,278.70 = 4,812.51 : x
  2. Step 2: Convert to fraction form
    18,852.48/28,278.70 = 4,812.51/x
  3. Step 3: Cross multiply
    18,852.48x = 28,278.70 × 4,812.51
  4. Step 4: Simplify right side
    18,852.48x = 136,091,526.54
  5. Step 5: Solve for x
    x = 136,091,526.54/18,852.48
  6. Step 6: Final answer
    x = 7,218.76

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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.