Home / 13,618.50-20,429.58-6,225.24

Finding the Fourth Proportional to 13,618.50, 20,429.58 and 6,225.24

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Solution

The fourth proportional to 13,618.50, 20,429.58 and 6,225.24 is: 9,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.50 : 20,429.58 = 6,225.24 : x
  2. Step 2: Convert to fraction form
    13,618.50/20,429.58 = 6,225.24/x
  3. Step 3: Cross multiply
    13,618.50x = 20,429.58 × 6,225.24
  4. Step 4: Simplify right side
    13,618.50x = 127,179,038.60
  5. Step 5: Solve for x
    x = 127,179,038.60/13,618.50
  6. Step 6: Final answer
    x = 9,338.70

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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.