Home / 13,003.56-19,505.52-5,603.40

Finding the Fourth Proportional to 13,003.56, 19,505.52 and 5,603.40

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Solution

The fourth proportional to 13,003.56, 19,505.52 and 5,603.40 is: 8,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.56 : 19,505.52 = 5,603.40 : x
  2. Step 2: Convert to fraction form
    13,003.56/19,505.52 = 5,603.40/x
  3. Step 3: Cross multiply
    13,003.56x = 19,505.52 × 5,603.40
  4. Step 4: Simplify right side
    13,003.56x = 109,297,230.77
  5. Step 5: Solve for x
    x = 109,297,230.77/13,003.56
  6. Step 6: Final answer
    x = 8,405.18

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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.