Home / 13,259.12-19,888.36-3,898.89

Finding the Fourth Proportional to 13,259.12, 19,888.36 and 3,898.89

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Solution

The fourth proportional to 13,259.12, 19,888.36 and 3,898.89 is: 5,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.12 : 19,888.36 = 3,898.89 : x
  2. Step 2: Convert to fraction form
    13,259.12/19,888.36 = 3,898.89/x
  3. Step 3: Cross multiply
    13,259.12x = 19,888.36 × 3,898.89
  4. Step 4: Simplify right side
    13,259.12x = 77,542,518.17
  5. Step 5: Solve for x
    x = 77,542,518.17/13,259.12
  6. Step 6: Final answer
    x = 5,848.24

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1.5x scale

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.