Home / 13,477.87-18,599.50-8,100.40

Finding the Fourth Proportional to 13,477.87, 18,599.50 and 8,100.40

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Solution

The fourth proportional to 13,477.87, 18,599.50 and 8,100.40 is: 11,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.87 : 18,599.50 = 8,100.40 : x
  2. Step 2: Convert to fraction form
    13,477.87/18,599.50 = 8,100.40/x
  3. Step 3: Cross multiply
    13,477.87x = 18,599.50 × 8,100.40
  4. Step 4: Simplify right side
    13,477.87x = 150,663,389.80
  5. Step 5: Solve for x
    x = 150,663,389.80/13,477.87
  6. Step 6: Final answer
    x = 11,178.58

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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.