Home / 7,215.10-10,814.56-4,721.08

Finding the Fourth Proportional to 7,215.10, 10,814.56 and 4,721.08

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Solution

The fourth proportional to 7,215.10, 10,814.56 and 4,721.08 is: 7,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.10 : 10,814.56 = 4,721.08 : x
  2. Step 2: Convert to fraction form
    7,215.10/10,814.56 = 4,721.08/x
  3. Step 3: Cross multiply
    7,215.10x = 10,814.56 × 4,721.08
  4. Step 4: Simplify right side
    7,215.10x = 51,056,402.92
  5. Step 5: Solve for x
    x = 51,056,402.92/7,215.10
  6. Step 6: Final answer
    x = 7,076.33

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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.