Home / 15,907.04-21,941.62-9,772.05

Finding the Fourth Proportional to 15,907.04, 21,941.62 and 9,772.05

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Solution

The fourth proportional to 15,907.04, 21,941.62 and 9,772.05 is: 13,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.04 : 21,941.62 = 9,772.05 : x
  2. Step 2: Convert to fraction form
    15,907.04/21,941.62 = 9,772.05/x
  3. Step 3: Cross multiply
    15,907.04x = 21,941.62 × 9,772.05
  4. Step 4: Simplify right side
    15,907.04x = 214,414,702.22
  5. Step 5: Solve for x
    x = 214,414,702.22/15,907.04
  6. Step 6: Final answer
    x = 13,479.23

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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.