Home / 14,280.18-21,318.05-12,412.34

Finding the Fourth Proportional to 14,280.18, 21,318.05 and 12,412.34

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Solution

The fourth proportional to 14,280.18, 21,318.05 and 12,412.34 is: 18,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.18 : 21,318.05 = 12,412.34 : x
  2. Step 2: Convert to fraction form
    14,280.18/21,318.05 = 12,412.34/x
  3. Step 3: Cross multiply
    14,280.18x = 21,318.05 × 12,412.34
  4. Step 4: Simplify right side
    14,280.18x = 264,606,884.74
  5. Step 5: Solve for x
    x = 264,606,884.74/14,280.18
  6. Step 6: Final answer
    x = 18,529.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.