Home / 14,799.78-20,310-13,965.06

Finding the Fourth Proportional to 14,799.78, 20,310 and 13,965.06

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Solution

The fourth proportional to 14,799.78, 20,310 and 13,965.06 is: 19,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.78 : 20,310 = 13,965.06 : x
  2. Step 2: Convert to fraction form
    14,799.78/20,310 = 13,965.06/x
  3. Step 3: Cross multiply
    14,799.78x = 20,310 × 13,965.06
  4. Step 4: Simplify right side
    14,799.78x = 283,630,368.60
  5. Step 5: Solve for x
    x = 283,630,368.60/14,799.78
  6. Step 6: Final answer
    x = 19,164.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.