Home / 15,283.85-21,091.44-8,569.46

Finding the Fourth Proportional to 15,283.85, 21,091.44 and 8,569.46

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Solution

The fourth proportional to 15,283.85, 21,091.44 and 8,569.46 is: 11,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.85 : 21,091.44 = 8,569.46 : x
  2. Step 2: Convert to fraction form
    15,283.85/21,091.44 = 8,569.46/x
  3. Step 3: Cross multiply
    15,283.85x = 21,091.44 × 8,569.46
  4. Step 4: Simplify right side
    15,283.85x = 180,742,217.65
  5. Step 5: Solve for x
    x = 180,742,217.65/15,283.85
  6. Step 6: Final answer
    x = 11,825.70

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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.