Home / 13,017.36-17,959.10-8,543.58

Finding the Fourth Proportional to 13,017.36, 17,959.10 and 8,543.58

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Solution

The fourth proportional to 13,017.36, 17,959.10 and 8,543.58 is: 11,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.36 : 17,959.10 = 8,543.58 : x
  2. Step 2: Convert to fraction form
    13,017.36/17,959.10 = 8,543.58/x
  3. Step 3: Cross multiply
    13,017.36x = 17,959.10 × 8,543.58
  4. Step 4: Simplify right side
    13,017.36x = 153,435,007.58
  5. Step 5: Solve for x
    x = 153,435,007.58/13,017.36
  6. Step 6: Final answer
    x = 11,786.95

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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.