Home / 8,715.16-12,027.36-5,358.16

Finding the Fourth Proportional to 8,715.16, 12,027.36 and 5,358.16

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Solution

The fourth proportional to 8,715.16, 12,027.36 and 5,358.16 is: 7,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.16 : 12,027.36 = 5,358.16 : x
  2. Step 2: Convert to fraction form
    8,715.16/12,027.36 = 5,358.16/x
  3. Step 3: Cross multiply
    8,715.16x = 12,027.36 × 5,358.16
  4. Step 4: Simplify right side
    8,715.16x = 64,444,519.26
  5. Step 5: Solve for x
    x = 64,444,519.26/8,715.16
  6. Step 6: Final answer
    x = 7,394.53

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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.