Home / 7,938.40-11,907.36-2,095.04

Finding the Fourth Proportional to 7,938.40, 11,907.36 and 2,095.04

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Solution

The fourth proportional to 7,938.40, 11,907.36 and 2,095.04 is: 3,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.40 : 11,907.36 = 2,095.04 : x
  2. Step 2: Convert to fraction form
    7,938.40/11,907.36 = 2,095.04/x
  3. Step 3: Cross multiply
    7,938.40x = 11,907.36 × 2,095.04
  4. Step 4: Simplify right side
    7,938.40x = 24,946,395.49
  5. Step 5: Solve for x
    x = 24,946,395.49/7,938.40
  6. Step 6: Final answer
    x = 3,142.50

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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.