Home / 13,875.23-20,807.37-5,553.70

Finding the Fourth Proportional to 13,875.23, 20,807.37 and 5,553.70

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Solution

The fourth proportional to 13,875.23, 20,807.37 and 5,553.70 is: 8,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.23 : 20,807.37 = 5,553.70 : x
  2. Step 2: Convert to fraction form
    13,875.23/20,807.37 = 5,553.70/x
  3. Step 3: Cross multiply
    13,875.23x = 20,807.37 × 5,553.70
  4. Step 4: Simplify right side
    13,875.23x = 115,557,838.75
  5. Step 5: Solve for x
    x = 115,557,838.75/13,875.23
  6. Step 6: Final answer
    x = 8,328.35

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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.