Home / 8,904.63-12,293.99-5,719.21

Finding the Fourth Proportional to 8,904.63, 12,293.99 and 5,719.21

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Solution

The fourth proportional to 8,904.63, 12,293.99 and 5,719.21 is: 7,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.63 : 12,293.99 = 5,719.21 : x
  2. Step 2: Convert to fraction form
    8,904.63/12,293.99 = 5,719.21/x
  3. Step 3: Cross multiply
    8,904.63x = 12,293.99 × 5,719.21
  4. Step 4: Simplify right side
    8,904.63x = 70,311,881.95
  5. Step 5: Solve for x
    x = 70,311,881.95/8,904.63
  6. Step 6: Final answer
    x = 7,896.10

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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.