Home / 7,905.95-10,911.74-5,076.90

Finding the Fourth Proportional to 7,905.95, 10,911.74 and 5,076.90

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Solution

The fourth proportional to 7,905.95, 10,911.74 and 5,076.90 is: 7,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.95 : 10,911.74 = 5,076.90 : x
  2. Step 2: Convert to fraction form
    7,905.95/10,911.74 = 5,076.90/x
  3. Step 3: Cross multiply
    7,905.95x = 10,911.74 × 5,076.90
  4. Step 4: Simplify right side
    7,905.95x = 55,397,812.81
  5. Step 5: Solve for x
    x = 55,397,812.81/7,905.95
  6. Step 6: Final answer
    x = 7,007.10

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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.