Home / 10,210.19-15,313.88-2,813.58

Finding the Fourth Proportional to 10,210.19, 15,313.88 and 2,813.58

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Solution

The fourth proportional to 10,210.19, 15,313.88 and 2,813.58 is: 4,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.19 : 15,313.88 = 2,813.58 : x
  2. Step 2: Convert to fraction form
    10,210.19/15,313.88 = 2,813.58/x
  3. Step 3: Cross multiply
    10,210.19x = 15,313.88 × 2,813.58
  4. Step 4: Simplify right side
    10,210.19x = 43,086,833.52
  5. Step 5: Solve for x
    x = 43,086,833.52/10,210.19
  6. Step 6: Final answer
    x = 4,219.99

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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.