Home / 10,119.45-15,260.13-9,980.94

Finding the Fourth Proportional to 10,119.45, 15,260.13 and 9,980.94

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Solution

The fourth proportional to 10,119.45, 15,260.13 and 9,980.94 is: 15,051.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.45 : 15,260.13 = 9,980.94 : x
  2. Step 2: Convert to fraction form
    10,119.45/15,260.13 = 9,980.94/x
  3. Step 3: Cross multiply
    10,119.45x = 15,260.13 × 9,980.94
  4. Step 4: Simplify right side
    10,119.45x = 152,310,441.92
  5. Step 5: Solve for x
    x = 152,310,441.92/10,119.45
  6. Step 6: Final answer
    x = 15,051.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.