Home / 13,477.83-18,601.05-8,172.63

Finding the Fourth Proportional to 13,477.83, 18,601.05 and 8,172.63

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Solution

The fourth proportional to 13,477.83, 18,601.05 and 8,172.63 is: 11,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.83 : 18,601.05 = 8,172.63 : x
  2. Step 2: Convert to fraction form
    13,477.83/18,601.05 = 8,172.63/x
  3. Step 3: Cross multiply
    13,477.83x = 18,601.05 × 8,172.63
  4. Step 4: Simplify right side
    13,477.83x = 152,019,499.26
  5. Step 5: Solve for x
    x = 152,019,499.26/13,477.83
  6. Step 6: Final answer
    x = 11,279.23

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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.