Home / 14,160.30-19,539.81-10,805.28

Finding the Fourth Proportional to 14,160.30, 19,539.81 and 10,805.28

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Solution

The fourth proportional to 14,160.30, 19,539.81 and 10,805.28 is: 14,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.30 : 19,539.81 = 10,805.28 : x
  2. Step 2: Convert to fraction form
    14,160.30/19,539.81 = 10,805.28/x
  3. Step 3: Cross multiply
    14,160.30x = 19,539.81 × 10,805.28
  4. Step 4: Simplify right side
    14,160.30x = 211,133,118.20
  5. Step 5: Solve for x
    x = 211,133,118.20/14,160.30
  6. Step 6: Final answer
    x = 14,910.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.