Home / 15,641.54-21,567.61-9,968.70

Finding the Fourth Proportional to 15,641.54, 21,567.61 and 9,968.70

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Solution

The fourth proportional to 15,641.54, 21,567.61 and 9,968.70 is: 13,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.54 : 21,567.61 = 9,968.70 : x
  2. Step 2: Convert to fraction form
    15,641.54/21,567.61 = 9,968.70/x
  3. Step 3: Cross multiply
    15,641.54x = 21,567.61 × 9,968.70
  4. Step 4: Simplify right side
    15,641.54x = 215,001,033.81
  5. Step 5: Solve for x
    x = 215,001,033.81/15,641.54
  6. Step 6: Final answer
    x = 13,745.52

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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.