Home / 8,979.10-13,460.13-3,134.14

Finding the Fourth Proportional to 8,979.10, 13,460.13 and 3,134.14

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Solution

The fourth proportional to 8,979.10, 13,460.13 and 3,134.14 is: 4,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.10 : 13,460.13 = 3,134.14 : x
  2. Step 2: Convert to fraction form
    8,979.10/13,460.13 = 3,134.14/x
  3. Step 3: Cross multiply
    8,979.10x = 13,460.13 × 3,134.14
  4. Step 4: Simplify right side
    8,979.10x = 42,185,931.84
  5. Step 5: Solve for x
    x = 42,185,931.84/8,979.10
  6. Step 6: Final answer
    x = 4,698.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.