Home / 14,123.40-21,148.65-11,207.40

Finding the Fourth Proportional to 14,123.40, 21,148.65 and 11,207.40

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Solution

The fourth proportional to 14,123.40, 21,148.65 and 11,207.40 is: 16,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.40 : 21,148.65 = 11,207.40 : x
  2. Step 2: Convert to fraction form
    14,123.40/21,148.65 = 11,207.40/x
  3. Step 3: Cross multiply
    14,123.40x = 21,148.65 × 11,207.40
  4. Step 4: Simplify right side
    14,123.40x = 237,021,380.01
  5. Step 5: Solve for x
    x = 237,021,380.01/14,123.40
  6. Step 6: Final answer
    x = 16,782.18

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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.