Home / 9,890.25-13,648.55-5,474.25

Finding the Fourth Proportional to 9,890.25, 13,648.55 and 5,474.25

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Solution

The fourth proportional to 9,890.25, 13,648.55 and 5,474.25 is: 7,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.25 : 13,648.55 = 5,474.25 : x
  2. Step 2: Convert to fraction form
    9,890.25/13,648.55 = 5,474.25/x
  3. Step 3: Cross multiply
    9,890.25x = 13,648.55 × 5,474.25
  4. Step 4: Simplify right side
    9,890.25x = 74,715,547.47
  5. Step 5: Solve for x
    x = 74,715,547.47/9,890.25
  6. Step 6: Final answer
    x = 7,554.47

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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.