Home / 10,203.09-15,274.90-7,582.21

Finding the Fourth Proportional to 10,203.09, 15,274.90 and 7,582.21

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Solution

The fourth proportional to 10,203.09, 15,274.90 and 7,582.21 is: 11,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.09 : 15,274.90 = 7,582.21 : x
  2. Step 2: Convert to fraction form
    10,203.09/15,274.90 = 7,582.21/x
  3. Step 3: Cross multiply
    10,203.09x = 15,274.90 × 7,582.21
  4. Step 4: Simplify right side
    10,203.09x = 115,817,499.53
  5. Step 5: Solve for x
    x = 115,817,499.53/10,203.09
  6. Step 6: Final answer
    x = 11,351.22

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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.