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Finding the Fourth Proportional to 7,903.59, 10,907.16 and 4,318.70

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Solution

The fourth proportional to 7,903.59, 10,907.16 and 4,318.70 is: 5,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.59 : 10,907.16 = 4,318.70 : x
  2. Step 2: Convert to fraction form
    7,903.59/10,907.16 = 4,318.70/x
  3. Step 3: Cross multiply
    7,903.59x = 10,907.16 × 4,318.70
  4. Step 4: Simplify right side
    7,903.59x = 47,104,697.36
  5. Step 5: Solve for x
    x = 47,104,697.36/7,903.59
  6. Step 6: Final answer
    x = 5,959.91

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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.