Home / 13,363.79-18,443.40-7,698.75

Finding the Fourth Proportional to 13,363.79, 18,443.40 and 7,698.75

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Solution

The fourth proportional to 13,363.79, 18,443.40 and 7,698.75 is: 10,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.79 : 18,443.40 = 7,698.75 : x
  2. Step 2: Convert to fraction form
    13,363.79/18,443.40 = 7,698.75/x
  3. Step 3: Cross multiply
    13,363.79x = 18,443.40 × 7,698.75
  4. Step 4: Simplify right side
    13,363.79x = 141,991,125.75
  5. Step 5: Solve for x
    x = 141,991,125.75/13,363.79
  6. Step 6: Final answer
    x = 10,625.06

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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.