Home / 9,431.30-13,015.13-5,124.35

Finding the Fourth Proportional to 9,431.30, 13,015.13 and 5,124.35

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Solution

The fourth proportional to 9,431.30, 13,015.13 and 5,124.35 is: 7,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.30 : 13,015.13 = 5,124.35 : x
  2. Step 2: Convert to fraction form
    9,431.30/13,015.13 = 5,124.35/x
  3. Step 3: Cross multiply
    9,431.30x = 13,015.13 × 5,124.35
  4. Step 4: Simplify right side
    9,431.30x = 66,694,081.42
  5. Step 5: Solve for x
    x = 66,694,081.42/9,431.30
  6. Step 6: Final answer
    x = 7,071.57

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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.