Home / 13,985.05-19,298.81-8,012.58

Finding the Fourth Proportional to 13,985.05, 19,298.81 and 8,012.58

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Solution

The fourth proportional to 13,985.05, 19,298.81 and 8,012.58 is: 11,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.05 : 19,298.81 = 8,012.58 : x
  2. Step 2: Convert to fraction form
    13,985.05/19,298.81 = 8,012.58/x
  3. Step 3: Cross multiply
    13,985.05x = 19,298.81 × 8,012.58
  4. Step 4: Simplify right side
    13,985.05x = 154,633,122.47
  5. Step 5: Solve for x
    x = 154,633,122.47/13,985.05
  6. Step 6: Final answer
    x = 11,057.03

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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.