Home / 9,887.40-13,641.35-5,907.47

Finding the Fourth Proportional to 9,887.40, 13,641.35 and 5,907.47

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Solution

The fourth proportional to 9,887.40, 13,641.35 and 5,907.47 is: 8,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.40 : 13,641.35 = 5,907.47 : x
  2. Step 2: Convert to fraction form
    9,887.40/13,641.35 = 5,907.47/x
  3. Step 3: Cross multiply
    9,887.40x = 13,641.35 × 5,907.47
  4. Step 4: Simplify right side
    9,887.40x = 80,585,768.14
  5. Step 5: Solve for x
    x = 80,585,768.14/9,887.40
  6. Step 6: Final answer
    x = 8,150.35

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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.