Home / 13,176.88-18,184.55-7,512.47

Finding the Fourth Proportional to 13,176.88, 18,184.55 and 7,512.47

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Solution

The fourth proportional to 13,176.88, 18,184.55 and 7,512.47 is: 10,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.88 : 18,184.55 = 7,512.47 : x
  2. Step 2: Convert to fraction form
    13,176.88/18,184.55 = 7,512.47/x
  3. Step 3: Cross multiply
    13,176.88x = 18,184.55 × 7,512.47
  4. Step 4: Simplify right side
    13,176.88x = 136,610,886.34
  5. Step 5: Solve for x
    x = 136,610,886.34/13,176.88
  6. Step 6: Final answer
    x = 10,367.47

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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.