Home / 15,201.54-21,007.08-10,966.50

Finding the Fourth Proportional to 15,201.54, 21,007.08 and 10,966.50

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Solution

The fourth proportional to 15,201.54, 21,007.08 and 10,966.50 is: 15,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,201.54 : 21,007.08 = 10,966.50 : x
  2. Step 2: Convert to fraction form
    15,201.54/21,007.08 = 10,966.50/x
  3. Step 3: Cross multiply
    15,201.54x = 21,007.08 × 10,966.50
  4. Step 4: Simplify right side
    15,201.54x = 230,374,142.82
  5. Step 5: Solve for x
    x = 230,374,142.82/15,201.54
  6. Step 6: Final answer
    x = 15,154.66

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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.