Home / 13,765.46-20,649.55-4,403.13

Finding the Fourth Proportional to 13,765.46, 20,649.55 and 4,403.13

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Solution

The fourth proportional to 13,765.46, 20,649.55 and 4,403.13 is: 6,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.46 : 20,649.55 = 4,403.13 : x
  2. Step 2: Convert to fraction form
    13,765.46/20,649.55 = 4,403.13/x
  3. Step 3: Cross multiply
    13,765.46x = 20,649.55 × 4,403.13
  4. Step 4: Simplify right side
    13,765.46x = 90,922,547.09
  5. Step 5: Solve for x
    x = 90,922,547.09/13,765.46
  6. Step 6: Final answer
    x = 6,605.12

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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.