Home / 13,436.08-18,544.85-8,712.16

Finding the Fourth Proportional to 13,436.08, 18,544.85 and 8,712.16

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Solution

The fourth proportional to 13,436.08, 18,544.85 and 8,712.16 is: 12,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.08 : 18,544.85 = 8,712.16 : x
  2. Step 2: Convert to fraction form
    13,436.08/18,544.85 = 8,712.16/x
  3. Step 3: Cross multiply
    13,436.08x = 18,544.85 × 8,712.16
  4. Step 4: Simplify right side
    13,436.08x = 161,565,643.12
  5. Step 5: Solve for x
    x = 161,565,643.12/13,436.08
  6. Step 6: Final answer
    x = 12,024.76

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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.