Home / 15,435.40-23,163.90-9,902.20

Finding the Fourth Proportional to 15,435.40, 23,163.90 and 9,902.20

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Solution

The fourth proportional to 15,435.40, 23,163.90 and 9,902.20 is: 14,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.40 : 23,163.90 = 9,902.20 : x
  2. Step 2: Convert to fraction form
    15,435.40/23,163.90 = 9,902.20/x
  3. Step 3: Cross multiply
    15,435.40x = 23,163.90 × 9,902.20
  4. Step 4: Simplify right side
    15,435.40x = 229,373,570.58
  5. Step 5: Solve for x
    x = 229,373,570.58/15,435.40
  6. Step 6: Final answer
    x = 14,860.23

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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.