Home / 7,938.95-10,960.76-5,107.64

Finding the Fourth Proportional to 7,938.95, 10,960.76 and 5,107.64

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Solution

The fourth proportional to 7,938.95, 10,960.76 and 5,107.64 is: 7,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.95 : 10,960.76 = 5,107.64 : x
  2. Step 2: Convert to fraction form
    7,938.95/10,960.76 = 5,107.64/x
  3. Step 3: Cross multiply
    7,938.95x = 10,960.76 × 5,107.64
  4. Step 4: Simplify right side
    7,938.95x = 55,983,574.17
  5. Step 5: Solve for x
    x = 55,983,574.17/7,938.95
  6. Step 6: Final answer
    x = 7,051.76

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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.