Home / 14,393.90-19,846.61-9,858.78

Finding the Fourth Proportional to 14,393.90, 19,846.61 and 9,858.78

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Solution

The fourth proportional to 14,393.90, 19,846.61 and 9,858.78 is: 13,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.90 : 19,846.61 = 9,858.78 : x
  2. Step 2: Convert to fraction form
    14,393.90/19,846.61 = 9,858.78/x
  3. Step 3: Cross multiply
    14,393.90x = 19,846.61 × 9,858.78
  4. Step 4: Simplify right side
    14,393.90x = 195,663,361.74
  5. Step 5: Solve for x
    x = 195,663,361.74/14,393.90
  6. Step 6: Final answer
    x = 13,593.50

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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.