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Finding the Fourth Proportional to 9,499, 13,108.38 and 5,307.28

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Solution

The fourth proportional to 9,499, 13,108.38 and 5,307.28 is: 7,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,499 : 13,108.38 = 5,307.28 : x
  2. Step 2: Convert to fraction form
    9,499/13,108.38 = 5,307.28/x
  3. Step 3: Cross multiply
    9,499x = 13,108.38 × 5,307.28
  4. Step 4: Simplify right side
    9,499x = 69,569,843.01
  5. Step 5: Solve for x
    x = 69,569,843.01/9,499
  6. Step 6: Final answer
    x = 7,323.91

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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.