Home / 9,648.81-13,316.79-6,112.35

Finding the Fourth Proportional to 9,648.81, 13,316.79 and 6,112.35

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Solution

The fourth proportional to 9,648.81, 13,316.79 and 6,112.35 is: 8,435.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,648.81 : 13,316.79 = 6,112.35 : x
  2. Step 2: Convert to fraction form
    9,648.81/13,316.79 = 6,112.35/x
  3. Step 3: Cross multiply
    9,648.81x = 13,316.79 × 6,112.35
  4. Step 4: Simplify right side
    9,648.81x = 81,396,881.36
  5. Step 5: Solve for x
    x = 81,396,881.36/9,648.81
  6. Step 6: Final answer
    x = 8,435.95

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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.