Home / 11,509.85-17,180.75-9,876.89

Finding the Fourth Proportional to 11,509.85, 17,180.75 and 9,876.89

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Solution

The fourth proportional to 11,509.85, 17,180.75 and 9,876.89 is: 14,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.85 : 17,180.75 = 9,876.89 : x
  2. Step 2: Convert to fraction form
    11,509.85/17,180.75 = 9,876.89/x
  3. Step 3: Cross multiply
    11,509.85x = 17,180.75 × 9,876.89
  4. Step 4: Simplify right side
    11,509.85x = 169,692,445.51
  5. Step 5: Solve for x
    x = 169,692,445.51/11,509.85
  6. Step 6: Final answer
    x = 14,743.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.