Home / 10,240.62-15,281.03-9,137.40

Finding the Fourth Proportional to 10,240.62, 15,281.03 and 9,137.40

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Solution

The fourth proportional to 10,240.62, 15,281.03 and 9,137.40 is: 13,634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.62 : 15,281.03 = 9,137.40 : x
  2. Step 2: Convert to fraction form
    10,240.62/15,281.03 = 9,137.40/x
  3. Step 3: Cross multiply
    10,240.62x = 15,281.03 × 9,137.40
  4. Step 4: Simplify right side
    10,240.62x = 139,628,883.52
  5. Step 5: Solve for x
    x = 139,628,883.52/10,240.62
  6. Step 6: Final answer
    x = 13,634.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.