Home / 11,364.75-15,686.40-6,888.69

Finding the Fourth Proportional to 11,364.75, 15,686.40 and 6,888.69

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Solution

The fourth proportional to 11,364.75, 15,686.40 and 6,888.69 is: 9,508.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,364.75 : 15,686.40 = 6,888.69 : x
  2. Step 2: Convert to fraction form
    11,364.75/15,686.40 = 6,888.69/x
  3. Step 3: Cross multiply
    11,364.75x = 15,686.40 × 6,888.69
  4. Step 4: Simplify right side
    11,364.75x = 108,058,746.82
  5. Step 5: Solve for x
    x = 108,058,746.82/11,364.75
  6. Step 6: Final answer
    x = 9,508.24

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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.