Home / 12,631.77-18,923.40-7,068.26

Finding the Fourth Proportional to 12,631.77, 18,923.40 and 7,068.26

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Solution

The fourth proportional to 12,631.77, 18,923.40 and 7,068.26 is: 10,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.77 : 18,923.40 = 7,068.26 : x
  2. Step 2: Convert to fraction form
    12,631.77/18,923.40 = 7,068.26/x
  3. Step 3: Cross multiply
    12,631.77x = 18,923.40 × 7,068.26
  4. Step 4: Simplify right side
    12,631.77x = 133,755,416.67
  5. Step 5: Solve for x
    x = 133,755,416.67/12,631.77
  6. Step 6: Final answer
    x = 10,588.81

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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.