Home / 7,821.45-10,792.98-4,284.63

Finding the Fourth Proportional to 7,821.45, 10,792.98 and 4,284.63

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Solution

The fourth proportional to 7,821.45, 10,792.98 and 4,284.63 is: 5,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.45 : 10,792.98 = 4,284.63 : x
  2. Step 2: Convert to fraction form
    7,821.45/10,792.98 = 4,284.63/x
  3. Step 3: Cross multiply
    7,821.45x = 10,792.98 × 4,284.63
  4. Step 4: Simplify right side
    7,821.45x = 46,243,925.90
  5. Step 5: Solve for x
    x = 46,243,925.90/7,821.45
  6. Step 6: Final answer
    x = 5,912.45

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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.