Home / 13,895.46-20,821.32-7,646.16

Finding the Fourth Proportional to 13,895.46, 20,821.32 and 7,646.16

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Solution

The fourth proportional to 13,895.46, 20,821.32 and 7,646.16 is: 11,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.46 : 20,821.32 = 7,646.16 : x
  2. Step 2: Convert to fraction form
    13,895.46/20,821.32 = 7,646.16/x
  3. Step 3: Cross multiply
    13,895.46x = 20,821.32 × 7,646.16
  4. Step 4: Simplify right side
    13,895.46x = 159,203,144.13
  5. Step 5: Solve for x
    x = 159,203,144.13/13,895.46
  6. Step 6: Final answer
    x = 11,457.21

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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.