Home / 10,356.45-15,536.70-4,115.40

Finding the Fourth Proportional to 10,356.45, 15,536.70 and 4,115.40

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Solution

The fourth proportional to 10,356.45, 15,536.70 and 4,115.40 is: 6,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.45 : 15,536.70 = 4,115.40 : x
  2. Step 2: Convert to fraction form
    10,356.45/15,536.70 = 4,115.40/x
  3. Step 3: Cross multiply
    10,356.45x = 15,536.70 × 4,115.40
  4. Step 4: Simplify right side
    10,356.45x = 63,939,735.18
  5. Step 5: Solve for x
    x = 63,939,735.18/10,356.45
  6. Step 6: Final answer
    x = 6,173.90

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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.