Home / 11,283.33-15,564.65-8,761.40

Finding the Fourth Proportional to 11,283.33, 15,564.65 and 8,761.40

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Solution

The fourth proportional to 11,283.33, 15,564.65 and 8,761.40 is: 12,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.33 : 15,564.65 = 8,761.40 : x
  2. Step 2: Convert to fraction form
    11,283.33/15,564.65 = 8,761.40/x
  3. Step 3: Cross multiply
    11,283.33x = 15,564.65 × 8,761.40
  4. Step 4: Simplify right side
    11,283.33x = 136,368,124.51
  5. Step 5: Solve for x
    x = 136,368,124.51/11,283.33
  6. Step 6: Final answer
    x = 12,085.80

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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.