Home / 12,477.13-18,709.47-4,154.26

Finding the Fourth Proportional to 12,477.13, 18,709.47 and 4,154.26

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Solution

The fourth proportional to 12,477.13, 18,709.47 and 4,154.26 is: 6,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.13 : 18,709.47 = 4,154.26 : x
  2. Step 2: Convert to fraction form
    12,477.13/18,709.47 = 4,154.26/x
  3. Step 3: Cross multiply
    12,477.13x = 18,709.47 × 4,154.26
  4. Step 4: Simplify right side
    12,477.13x = 77,724,002.84
  5. Step 5: Solve for x
    x = 77,724,002.84/12,477.13
  6. Step 6: Final answer
    x = 6,229.32

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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.