Home / 13,535.30-18,661.59-8,747.19

Finding the Fourth Proportional to 13,535.30, 18,661.59 and 8,747.19

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Solution

The fourth proportional to 13,535.30, 18,661.59 and 8,747.19 is: 12,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.30 : 18,661.59 = 8,747.19 : x
  2. Step 2: Convert to fraction form
    13,535.30/18,661.59 = 8,747.19/x
  3. Step 3: Cross multiply
    13,535.30x = 18,661.59 × 8,747.19
  4. Step 4: Simplify right side
    13,535.30x = 163,236,473.43
  5. Step 5: Solve for x
    x = 163,236,473.43/13,535.30
  6. Step 6: Final answer
    x = 12,060.05

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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.