Home / 13,900.74-20,854.53-4,040.12

Finding the Fourth Proportional to 13,900.74, 20,854.53 and 4,040.12

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Solution

The fourth proportional to 13,900.74, 20,854.53 and 4,040.12 is: 6,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.74 : 20,854.53 = 4,040.12 : x
  2. Step 2: Convert to fraction form
    13,900.74/20,854.53 = 4,040.12/x
  3. Step 3: Cross multiply
    13,900.74x = 20,854.53 × 4,040.12
  4. Step 4: Simplify right side
    13,900.74x = 84,254,699.47
  5. Step 5: Solve for x
    x = 84,254,699.47/13,900.74
  6. Step 6: Final answer
    x = 6,061.17

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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.