Home / 9,318.96-12,858.48-5,339.16

Finding the Fourth Proportional to 9,318.96, 12,858.48 and 5,339.16

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Solution

The fourth proportional to 9,318.96, 12,858.48 and 5,339.16 is: 7,367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.96 : 12,858.48 = 5,339.16 : x
  2. Step 2: Convert to fraction form
    9,318.96/12,858.48 = 5,339.16/x
  3. Step 3: Cross multiply
    9,318.96x = 12,858.48 × 5,339.16
  4. Step 4: Simplify right side
    9,318.96x = 68,653,482.08
  5. Step 5: Solve for x
    x = 68,653,482.08/9,318.96
  6. Step 6: Final answer
    x = 7,367.08

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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.