Home / 14,447.82-19,926.93-9,979.05

Finding the Fourth Proportional to 14,447.82, 19,926.93 and 9,979.05

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Solution

The fourth proportional to 14,447.82, 19,926.93 and 9,979.05 is: 13,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.82 : 19,926.93 = 9,979.05 : x
  2. Step 2: Convert to fraction form
    14,447.82/19,926.93 = 9,979.05/x
  3. Step 3: Cross multiply
    14,447.82x = 19,926.93 × 9,979.05
  4. Step 4: Simplify right side
    14,447.82x = 198,851,830.82
  5. Step 5: Solve for x
    x = 198,851,830.82/14,447.82
  6. Step 6: Final answer
    x = 13,763.45

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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.