Home / 9,215.64-12,715.65-5,857.23

Finding the Fourth Proportional to 9,215.64, 12,715.65 and 5,857.23

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Solution

The fourth proportional to 9,215.64, 12,715.65 and 5,857.23 is: 8,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.64 : 12,715.65 = 5,857.23 : x
  2. Step 2: Convert to fraction form
    9,215.64/12,715.65 = 5,857.23/x
  3. Step 3: Cross multiply
    9,215.64x = 12,715.65 × 5,857.23
  4. Step 4: Simplify right side
    9,215.64x = 74,478,486.65
  5. Step 5: Solve for x
    x = 74,478,486.65/9,215.64
  6. Step 6: Final answer
    x = 8,081.75

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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.