Home / 13,135.34-19,699.08-4,813.40

Finding the Fourth Proportional to 13,135.34, 19,699.08 and 4,813.40

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Solution

The fourth proportional to 13,135.34, 19,699.08 and 4,813.40 is: 7,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.34 : 19,699.08 = 4,813.40 : x
  2. Step 2: Convert to fraction form
    13,135.34/19,699.08 = 4,813.40/x
  3. Step 3: Cross multiply
    13,135.34x = 19,699.08 × 4,813.40
  4. Step 4: Simplify right side
    13,135.34x = 94,819,551.67
  5. Step 5: Solve for x
    x = 94,819,551.67/13,135.34
  6. Step 6: Final answer
    x = 7,218.66

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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.