Home / 13,261.19-19,887.73-4,374.89

Finding the Fourth Proportional to 13,261.19, 19,887.73 and 4,374.89

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Solution

The fourth proportional to 13,261.19, 19,887.73 and 4,374.89 is: 6,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.19 : 19,887.73 = 4,374.89 : x
  2. Step 2: Convert to fraction form
    13,261.19/19,887.73 = 4,374.89/x
  3. Step 3: Cross multiply
    13,261.19x = 19,887.73 × 4,374.89
  4. Step 4: Simplify right side
    13,261.19x = 87,006,520.72
  5. Step 5: Solve for x
    x = 87,006,520.72/13,261.19
  6. Step 6: Final answer
    x = 6,560.99

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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.