Home / 13,328.49-19,991.36-4,442.85

Finding the Fourth Proportional to 13,328.49, 19,991.36 and 4,442.85

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Solution

The fourth proportional to 13,328.49, 19,991.36 and 4,442.85 is: 6,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.49 : 19,991.36 = 4,442.85 : x
  2. Step 2: Convert to fraction form
    13,328.49/19,991.36 = 4,442.85/x
  3. Step 3: Cross multiply
    13,328.49x = 19,991.36 × 4,442.85
  4. Step 4: Simplify right side
    13,328.49x = 88,818,666.53
  5. Step 5: Solve for x
    x = 88,818,666.53/13,328.49
  6. Step 6: Final answer
    x = 6,663.82

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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.