Home / 10,512.06-15,777.45-5,320.86

Finding the Fourth Proportional to 10,512.06, 15,777.45 and 5,320.86

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Solution

The fourth proportional to 10,512.06, 15,777.45 and 5,320.86 is: 7,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.06 : 15,777.45 = 5,320.86 : x
  2. Step 2: Convert to fraction form
    10,512.06/15,777.45 = 5,320.86/x
  3. Step 3: Cross multiply
    10,512.06x = 15,777.45 × 5,320.86
  4. Step 4: Simplify right side
    10,512.06x = 83,949,602.61
  5. Step 5: Solve for x
    x = 83,949,602.61/10,512.06
  6. Step 6: Final answer
    x = 7,986.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.