Home / 13,765.45-18,999.35-9,050.17

Finding the Fourth Proportional to 13,765.45, 18,999.35 and 9,050.17

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Solution

The fourth proportional to 13,765.45, 18,999.35 and 9,050.17 is: 12,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.45 : 18,999.35 = 9,050.17 : x
  2. Step 2: Convert to fraction form
    13,765.45/18,999.35 = 9,050.17/x
  3. Step 3: Cross multiply
    13,765.45x = 18,999.35 × 9,050.17
  4. Step 4: Simplify right side
    13,765.45x = 171,947,347.39
  5. Step 5: Solve for x
    x = 171,947,347.39/13,765.45
  6. Step 6: Final answer
    x = 12,491.23

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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.