Home / 13,054.02-18,010.26-7,388.21

Finding the Fourth Proportional to 13,054.02, 18,010.26 and 7,388.21

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Solution

The fourth proportional to 13,054.02, 18,010.26 and 7,388.21 is: 10,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.02 : 18,010.26 = 7,388.21 : x
  2. Step 2: Convert to fraction form
    13,054.02/18,010.26 = 7,388.21/x
  3. Step 3: Cross multiply
    13,054.02x = 18,010.26 × 7,388.21
  4. Step 4: Simplify right side
    13,054.02x = 133,063,492.98
  5. Step 5: Solve for x
    x = 133,063,492.98/13,054.02
  6. Step 6: Final answer
    x = 10,193.30

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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.