Home / 14,312.70-21,439.89-12,837.69

Finding the Fourth Proportional to 14,312.70, 21,439.89 and 12,837.69

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Solution

The fourth proportional to 14,312.70, 21,439.89 and 12,837.69 is: 19,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.70 : 21,439.89 = 12,837.69 : x
  2. Step 2: Convert to fraction form
    14,312.70/21,439.89 = 12,837.69/x
  3. Step 3: Cross multiply
    14,312.70x = 21,439.89 × 12,837.69
  4. Step 4: Simplify right side
    14,312.70x = 275,238,661.45
  5. Step 5: Solve for x
    x = 275,238,661.45/14,312.70
  6. Step 6: Final answer
    x = 19,230.38

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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.