Home / 14,006.30-21,009.45-11,892.20

Finding the Fourth Proportional to 14,006.30, 21,009.45 and 11,892.20

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Solution

The fourth proportional to 14,006.30, 21,009.45 and 11,892.20 is: 17,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.30 : 21,009.45 = 11,892.20 : x
  2. Step 2: Convert to fraction form
    14,006.30/21,009.45 = 11,892.20/x
  3. Step 3: Cross multiply
    14,006.30x = 21,009.45 × 11,892.20
  4. Step 4: Simplify right side
    14,006.30x = 249,848,581.29
  5. Step 5: Solve for x
    x = 249,848,581.29/14,006.30
  6. Step 6: Final answer
    x = 17,838.30

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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.