Home / 11,390.54-15,718.95-6,674.81

Finding the Fourth Proportional to 11,390.54, 15,718.95 and 6,674.81

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Solution

The fourth proportional to 11,390.54, 15,718.95 and 6,674.81 is: 9,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.54 : 15,718.95 = 6,674.81 : x
  2. Step 2: Convert to fraction form
    11,390.54/15,718.95 = 6,674.81/x
  3. Step 3: Cross multiply
    11,390.54x = 15,718.95 × 6,674.81
  4. Step 4: Simplify right side
    11,390.54x = 104,921,043.95
  5. Step 5: Solve for x
    x = 104,921,043.95/11,390.54
  6. Step 6: Final answer
    x = 9,211.25

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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.