Home / 10,172.03-15,281.45-7,217.81

Finding the Fourth Proportional to 10,172.03, 15,281.45 and 7,217.81

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Solution

The fourth proportional to 10,172.03, 15,281.45 and 7,217.81 is: 10,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.03 : 15,281.45 = 7,217.81 : x
  2. Step 2: Convert to fraction form
    10,172.03/15,281.45 = 7,217.81/x
  3. Step 3: Cross multiply
    10,172.03x = 15,281.45 × 7,217.81
  4. Step 4: Simplify right side
    10,172.03x = 110,298,526.22
  5. Step 5: Solve for x
    x = 110,298,526.22/10,172.03
  6. Step 6: Final answer
    x = 10,843.32

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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.