Home / 12,622.36-17,417.54-7,318.92

Finding the Fourth Proportional to 12,622.36, 17,417.54 and 7,318.92

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Solution

The fourth proportional to 12,622.36, 17,417.54 and 7,318.92 is: 10,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.36 : 17,417.54 = 7,318.92 : x
  2. Step 2: Convert to fraction form
    12,622.36/17,417.54 = 7,318.92/x
  3. Step 3: Cross multiply
    12,622.36x = 17,417.54 × 7,318.92
  4. Step 4: Simplify right side
    12,622.36x = 127,477,581.86
  5. Step 5: Solve for x
    x = 127,477,581.86/12,622.36
  6. Step 6: Final answer
    x = 10,099.35

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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.