Home / 12,558.99-17,331.53-6,894.11

Finding the Fourth Proportional to 12,558.99, 17,331.53 and 6,894.11

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Solution

The fourth proportional to 12,558.99, 17,331.53 and 6,894.11 is: 9,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.99 : 17,331.53 = 6,894.11 : x
  2. Step 2: Convert to fraction form
    12,558.99/17,331.53 = 6,894.11/x
  3. Step 3: Cross multiply
    12,558.99x = 17,331.53 × 6,894.11
  4. Step 4: Simplify right side
    12,558.99x = 119,485,353.16
  5. Step 5: Solve for x
    x = 119,485,353.16/12,558.99
  6. Step 6: Final answer
    x = 9,513.93

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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.