Home / 15,163.81-22,758.50-6,405.01

Finding the Fourth Proportional to 15,163.81, 22,758.50 and 6,405.01

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Solution

The fourth proportional to 15,163.81, 22,758.50 and 6,405.01 is: 9,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.81 : 22,758.50 = 6,405.01 : x
  2. Step 2: Convert to fraction form
    15,163.81/22,758.50 = 6,405.01/x
  3. Step 3: Cross multiply
    15,163.81x = 22,758.50 × 6,405.01
  4. Step 4: Simplify right side
    15,163.81x = 145,768,388.06
  5. Step 5: Solve for x
    x = 145,768,388.06/15,163.81
  6. Step 6: Final answer
    x = 9,612.91

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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.