Home / 15,412.18-23,112.80-5,548.81

Finding the Fourth Proportional to 15,412.18, 23,112.80 and 5,548.81

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Solution

The fourth proportional to 15,412.18, 23,112.80 and 5,548.81 is: 8,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.18 : 23,112.80 = 5,548.81 : x
  2. Step 2: Convert to fraction form
    15,412.18/23,112.80 = 5,548.81/x
  3. Step 3: Cross multiply
    15,412.18x = 23,112.80 × 5,548.81
  4. Step 4: Simplify right side
    15,412.18x = 128,248,535.77
  5. Step 5: Solve for x
    x = 128,248,535.77/15,412.18
  6. Step 6: Final answer
    x = 8,321.25

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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.