Home / 9,702.10-13,388.85-5,453.28

Finding the Fourth Proportional to 9,702.10, 13,388.85 and 5,453.28

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Solution

The fourth proportional to 9,702.10, 13,388.85 and 5,453.28 is: 7,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702.10 : 13,388.85 = 5,453.28 : x
  2. Step 2: Convert to fraction form
    9,702.10/13,388.85 = 5,453.28/x
  3. Step 3: Cross multiply
    9,702.10x = 13,388.85 × 5,453.28
  4. Step 4: Simplify right side
    9,702.10x = 73,013,147.93
  5. Step 5: Solve for x
    x = 73,013,147.93/9,702.10
  6. Step 6: Final answer
    x = 7,525.50

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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.