Home / 15,145.76-20,907.60-10,180.64

Finding the Fourth Proportional to 15,145.76, 20,907.60 and 10,180.64

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Solution

The fourth proportional to 15,145.76, 20,907.60 and 10,180.64 is: 14,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.76 : 20,907.60 = 10,180.64 : x
  2. Step 2: Convert to fraction form
    15,145.76/20,907.60 = 10,180.64/x
  3. Step 3: Cross multiply
    15,145.76x = 20,907.60 × 10,180.64
  4. Step 4: Simplify right side
    15,145.76x = 212,852,748.86
  5. Step 5: Solve for x
    x = 212,852,748.86/15,145.76
  6. Step 6: Final answer
    x = 14,053.62

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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.