Home / 13,537.44-18,680.72-7,569.36

Finding the Fourth Proportional to 13,537.44, 18,680.72 and 7,569.36

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Solution

The fourth proportional to 13,537.44, 18,680.72 and 7,569.36 is: 10,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.44 : 18,680.72 = 7,569.36 : x
  2. Step 2: Convert to fraction form
    13,537.44/18,680.72 = 7,569.36/x
  3. Step 3: Cross multiply
    13,537.44x = 18,680.72 × 7,569.36
  4. Step 4: Simplify right side
    13,537.44x = 141,401,094.74
  5. Step 5: Solve for x
    x = 141,401,094.74/13,537.44
  6. Step 6: Final answer
    x = 10,445.19

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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.