Home / 9,158.08-12,637.65-5,179.99

Finding the Fourth Proportional to 9,158.08, 12,637.65 and 5,179.99

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Solution

The fourth proportional to 9,158.08, 12,637.65 and 5,179.99 is: 7,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.08 : 12,637.65 = 5,179.99 : x
  2. Step 2: Convert to fraction form
    9,158.08/12,637.65 = 5,179.99/x
  3. Step 3: Cross multiply
    9,158.08x = 12,637.65 × 5,179.99
  4. Step 4: Simplify right side
    9,158.08x = 65,462,900.62
  5. Step 5: Solve for x
    x = 65,462,900.62/9,158.08
  6. Step 6: Final answer
    x = 7,148.10

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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.