Home / 9,907.53-13,672.37-5,431.28

Finding the Fourth Proportional to 9,907.53, 13,672.37 and 5,431.28

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Solution

The fourth proportional to 9,907.53, 13,672.37 and 5,431.28 is: 7,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.53 : 13,672.37 = 5,431.28 : x
  2. Step 2: Convert to fraction form
    9,907.53/13,672.37 = 5,431.28/x
  3. Step 3: Cross multiply
    9,907.53x = 13,672.37 × 5,431.28
  4. Step 4: Simplify right side
    9,907.53x = 74,258,442.58
  5. Step 5: Solve for x
    x = 74,258,442.58/9,907.53
  6. Step 6: Final answer
    x = 7,495.16

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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.