Home / 13,312.49-18,374.44-8,006.28

Finding the Fourth Proportional to 13,312.49, 18,374.44 and 8,006.28

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Solution

The fourth proportional to 13,312.49, 18,374.44 and 8,006.28 is: 11,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.49 : 18,374.44 = 8,006.28 : x
  2. Step 2: Convert to fraction form
    13,312.49/18,374.44 = 8,006.28/x
  3. Step 3: Cross multiply
    13,312.49x = 18,374.44 × 8,006.28
  4. Step 4: Simplify right side
    13,312.49x = 147,110,911.48
  5. Step 5: Solve for x
    x = 147,110,911.48/13,312.49
  6. Step 6: Final answer
    x = 11,050.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.