Home / 7,359.18-10,155.66-4,215.38

Finding the Fourth Proportional to 7,359.18, 10,155.66 and 4,215.38

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Solution

The fourth proportional to 7,359.18, 10,155.66 and 4,215.38 is: 5,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,359.18 : 10,155.66 = 4,215.38 : x
  2. Step 2: Convert to fraction form
    7,359.18/10,155.66 = 4,215.38/x
  3. Step 3: Cross multiply
    7,359.18x = 10,155.66 × 4,215.38
  4. Step 4: Simplify right side
    7,359.18x = 42,809,966.05
  5. Step 5: Solve for x
    x = 42,809,966.05/7,359.18
  6. Step 6: Final answer
    x = 5,817.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.