Home / 13,316.78-19,969.98-4,992.26

Finding the Fourth Proportional to 13,316.78, 19,969.98 and 4,992.26

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Solution

The fourth proportional to 13,316.78, 19,969.98 and 4,992.26 is: 7,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.78 : 19,969.98 = 4,992.26 : x
  2. Step 2: Convert to fraction form
    13,316.78/19,969.98 = 4,992.26/x
  3. Step 3: Cross multiply
    13,316.78x = 19,969.98 × 4,992.26
  4. Step 4: Simplify right side
    13,316.78x = 99,695,312.07
  5. Step 5: Solve for x
    x = 99,695,312.07/13,316.78
  6. Step 6: Final answer
    x = 7,486.44

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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.