Home / 14,278.44-19,693.36-9,489.80

Finding the Fourth Proportional to 14,278.44, 19,693.36 and 9,489.80

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Solution

The fourth proportional to 14,278.44, 19,693.36 and 9,489.80 is: 13,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.44 : 19,693.36 = 9,489.80 : x
  2. Step 2: Convert to fraction form
    14,278.44/19,693.36 = 9,489.80/x
  3. Step 3: Cross multiply
    14,278.44x = 19,693.36 × 9,489.80
  4. Step 4: Simplify right side
    14,278.44x = 186,886,047.73
  5. Step 5: Solve for x
    x = 186,886,047.73/14,278.44
  6. Step 6: Final answer
    x = 13,088.69

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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.