Home / 13,056.08-18,017.52-7,087.80

Finding the Fourth Proportional to 13,056.08, 18,017.52 and 7,087.80

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Solution

The fourth proportional to 13,056.08, 18,017.52 and 7,087.80 is: 9,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.08 : 18,017.52 = 7,087.80 : x
  2. Step 2: Convert to fraction form
    13,056.08/18,017.52 = 7,087.80/x
  3. Step 3: Cross multiply
    13,056.08x = 18,017.52 × 7,087.80
  4. Step 4: Simplify right side
    13,056.08x = 127,704,578.26
  5. Step 5: Solve for x
    x = 127,704,578.26/13,056.08
  6. Step 6: Final answer
    x = 9,781.23

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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.