Home / 9,890.93-13,643.69-5,856.36

Finding the Fourth Proportional to 9,890.93, 13,643.69 and 5,856.36

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Solution

The fourth proportional to 9,890.93, 13,643.69 and 5,856.36 is: 8,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.93 : 13,643.69 = 5,856.36 : x
  2. Step 2: Convert to fraction form
    9,890.93/13,643.69 = 5,856.36/x
  3. Step 3: Cross multiply
    9,890.93x = 13,643.69 × 5,856.36
  4. Step 4: Simplify right side
    9,890.93x = 79,902,331.09
  5. Step 5: Solve for x
    x = 79,902,331.09/9,890.93
  6. Step 6: Final answer
    x = 8,078.35

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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.