Home / 18,957.72-26,166.86-11,002.50

Finding the Fourth Proportional to 18,957.72, 26,166.86 and 11,002.50

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Solution

The fourth proportional to 18,957.72, 26,166.86 and 11,002.50 is: 15,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.72 : 26,166.86 = 11,002.50 : x
  2. Step 2: Convert to fraction form
    18,957.72/26,166.86 = 11,002.50/x
  3. Step 3: Cross multiply
    18,957.72x = 26,166.86 × 11,002.50
  4. Step 4: Simplify right side
    18,957.72x = 287,900,877.15
  5. Step 5: Solve for x
    x = 287,900,877.15/18,957.72
  6. Step 6: Final answer
    x = 15,186.47

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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.