Home / 13,139.58-19,709.54-4,374.52

Finding the Fourth Proportional to 13,139.58, 19,709.54 and 4,374.52

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Solution

The fourth proportional to 13,139.58, 19,709.54 and 4,374.52 is: 6,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.58 : 19,709.54 = 4,374.52 : x
  2. Step 2: Convert to fraction form
    13,139.58/19,709.54 = 4,374.52/x
  3. Step 3: Cross multiply
    13,139.58x = 19,709.54 × 4,374.52
  4. Step 4: Simplify right side
    13,139.58x = 86,219,776.92
  5. Step 5: Solve for x
    x = 86,219,776.92/13,139.58
  6. Step 6: Final answer
    x = 6,561.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.