Home / 10,342.45-15,396.69-10,280.94

Finding the Fourth Proportional to 10,342.45, 15,396.69 and 10,280.94

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Solution

The fourth proportional to 10,342.45, 15,396.69 and 10,280.94 is: 15,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.45 : 15,396.69 = 10,280.94 : x
  2. Step 2: Convert to fraction form
    10,342.45/15,396.69 = 10,280.94/x
  3. Step 3: Cross multiply
    10,342.45x = 15,396.69 × 10,280.94
  4. Step 4: Simplify right side
    10,342.45x = 158,292,317.70
  5. Step 5: Solve for x
    x = 158,292,317.70/10,342.45
  6. Step 6: Final answer
    x = 15,305.12

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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.