Home / 14,090.94-21,118.73-12,331.76

Finding the Fourth Proportional to 14,090.94, 21,118.73 and 12,331.76

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Solution

The fourth proportional to 14,090.94, 21,118.73 and 12,331.76 is: 18,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.94 : 21,118.73 = 12,331.76 : x
  2. Step 2: Convert to fraction form
    14,090.94/21,118.73 = 12,331.76/x
  3. Step 3: Cross multiply
    14,090.94x = 21,118.73 × 12,331.76
  4. Step 4: Simplify right side
    14,090.94x = 260,430,942.61
  5. Step 5: Solve for x
    x = 260,430,942.61/14,090.94
  6. Step 6: Final answer
    x = 18,482.16

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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.