Home / 10,664.95-15,995.58-4,820.20

Finding the Fourth Proportional to 10,664.95, 15,995.58 and 4,820.20

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Solution

The fourth proportional to 10,664.95, 15,995.58 and 4,820.20 is: 7,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.95 : 15,995.58 = 4,820.20 : x
  2. Step 2: Convert to fraction form
    10,664.95/15,995.58 = 4,820.20/x
  3. Step 3: Cross multiply
    10,664.95x = 15,995.58 × 4,820.20
  4. Step 4: Simplify right side
    10,664.95x = 77,101,894.72
  5. Step 5: Solve for x
    x = 77,101,894.72/10,664.95
  6. Step 6: Final answer
    x = 7,229.47

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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.