Home / 13,987.08-19,302.19-7,699.46

Finding the Fourth Proportional to 13,987.08, 19,302.19 and 7,699.46

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Solution

The fourth proportional to 13,987.08, 19,302.19 and 7,699.46 is: 10,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.08 : 19,302.19 = 7,699.46 : x
  2. Step 2: Convert to fraction form
    13,987.08/19,302.19 = 7,699.46/x
  3. Step 3: Cross multiply
    13,987.08x = 19,302.19 × 7,699.46
  4. Step 4: Simplify right side
    13,987.08x = 148,616,324.06
  5. Step 5: Solve for x
    x = 148,616,324.06/13,987.08
  6. Step 6: Final answer
    x = 10,625.26

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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.