Home / 12,509.46-18,742.59-6,648.30

Finding the Fourth Proportional to 12,509.46, 18,742.59 and 6,648.30

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Solution

The fourth proportional to 12,509.46, 18,742.59 and 6,648.30 is: 9,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.46 : 18,742.59 = 6,648.30 : x
  2. Step 2: Convert to fraction form
    12,509.46/18,742.59 = 6,648.30/x
  3. Step 3: Cross multiply
    12,509.46x = 18,742.59 × 6,648.30
  4. Step 4: Simplify right side
    12,509.46x = 124,606,361.10
  5. Step 5: Solve for x
    x = 124,606,361.10/12,509.46
  6. Step 6: Final answer
    x = 9,960.97

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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.