Home / 11,904.57-17,836.70-7,210.40

Finding the Fourth Proportional to 11,904.57, 17,836.70 and 7,210.40

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Solution

The fourth proportional to 11,904.57, 17,836.70 and 7,210.40 is: 10,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.57 : 17,836.70 = 7,210.40 : x
  2. Step 2: Convert to fraction form
    11,904.57/17,836.70 = 7,210.40/x
  3. Step 3: Cross multiply
    11,904.57x = 17,836.70 × 7,210.40
  4. Step 4: Simplify right side
    11,904.57x = 128,609,616.44
  5. Step 5: Solve for x
    x = 128,609,616.44/11,904.57
  6. Step 6: Final answer
    x = 10,803.38

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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.