Home / 13,588.32-18,741.24-9,110.64

Finding the Fourth Proportional to 13,588.32, 18,741.24 and 9,110.64

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Solution

The fourth proportional to 13,588.32, 18,741.24 and 9,110.64 is: 12,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.32 : 18,741.24 = 9,110.64 : x
  2. Step 2: Convert to fraction form
    13,588.32/18,741.24 = 9,110.64/x
  3. Step 3: Cross multiply
    13,588.32x = 18,741.24 × 9,110.64
  4. Step 4: Simplify right side
    13,588.32x = 170,744,690.79
  5. Step 5: Solve for x
    x = 170,744,690.79/13,588.32
  6. Step 6: Final answer
    x = 12,565.55

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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.