Home / 13,011.51-17,963.61-8,543.07

Finding the Fourth Proportional to 13,011.51, 17,963.61 and 8,543.07

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Solution

The fourth proportional to 13,011.51, 17,963.61 and 8,543.07 is: 11,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.51 : 17,963.61 = 8,543.07 : x
  2. Step 2: Convert to fraction form
    13,011.51/17,963.61 = 8,543.07/x
  3. Step 3: Cross multiply
    13,011.51x = 17,963.61 × 8,543.07
  4. Step 4: Simplify right side
    13,011.51x = 153,464,377.68
  5. Step 5: Solve for x
    x = 153,464,377.68/13,011.51
  6. Step 6: Final answer
    x = 11,794.51

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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.