Home / 11,328.16-15,634.40-6,361.12

Finding the Fourth Proportional to 11,328.16, 15,634.40 and 6,361.12

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Solution

The fourth proportional to 11,328.16, 15,634.40 and 6,361.12 is: 8,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.16 : 15,634.40 = 6,361.12 : x
  2. Step 2: Convert to fraction form
    11,328.16/15,634.40 = 6,361.12/x
  3. Step 3: Cross multiply
    11,328.16x = 15,634.40 × 6,361.12
  4. Step 4: Simplify right side
    11,328.16x = 99,452,294.53
  5. Step 5: Solve for x
    x = 99,452,294.53/11,328.16
  6. Step 6: Final answer
    x = 8,779.21

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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.