Home / 10,215.06-15,322.65-3,642.30

Finding the Fourth Proportional to 10,215.06, 15,322.65 and 3,642.30

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Solution

The fourth proportional to 10,215.06, 15,322.65 and 3,642.30 is: 5,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.06 : 15,322.65 = 3,642.30 : x
  2. Step 2: Convert to fraction form
    10,215.06/15,322.65 = 3,642.30/x
  3. Step 3: Cross multiply
    10,215.06x = 15,322.65 × 3,642.30
  4. Step 4: Simplify right side
    10,215.06x = 55,809,688.10
  5. Step 5: Solve for x
    x = 55,809,688.10/10,215.06
  6. Step 6: Final answer
    x = 5,463.47

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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.