Home / 14,208.30-21,250.16-9,921.47

Finding the Fourth Proportional to 14,208.30, 21,250.16 and 9,921.47

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Solution

The fourth proportional to 14,208.30, 21,250.16 and 9,921.47 is: 14,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.30 : 21,250.16 = 9,921.47 : x
  2. Step 2: Convert to fraction form
    14,208.30/21,250.16 = 9,921.47/x
  3. Step 3: Cross multiply
    14,208.30x = 21,250.16 × 9,921.47
  4. Step 4: Simplify right side
    14,208.30x = 210,832,929.42
  5. Step 5: Solve for x
    x = 210,832,929.42/14,208.30
  6. Step 6: Final answer
    x = 14,838.72

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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.