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Finding the Fourth Proportional to 14,357.39, 19,814.09 and 7,985.39

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Solution

The fourth proportional to 14,357.39, 19,814.09 and 7,985.39 is: 11,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,357.39 : 19,814.09 = 7,985.39 : x
  2. Step 2: Convert to fraction form
    14,357.39/19,814.09 = 7,985.39/x
  3. Step 3: Cross multiply
    14,357.39x = 19,814.09 × 7,985.39
  4. Step 4: Simplify right side
    14,357.39x = 158,223,305.64
  5. Step 5: Solve for x
    x = 158,223,305.64/14,357.39
  6. Step 6: Final answer
    x = 11,020.34

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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.