Home / 15,835.46-21,852.60-8,665.35

Finding the Fourth Proportional to 15,835.46, 21,852.60 and 8,665.35

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Solution

The fourth proportional to 15,835.46, 21,852.60 and 8,665.35 is: 11,957.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.46 : 21,852.60 = 8,665.35 : x
  2. Step 2: Convert to fraction form
    15,835.46/21,852.60 = 8,665.35/x
  3. Step 3: Cross multiply
    15,835.46x = 21,852.60 × 8,665.35
  4. Step 4: Simplify right side
    15,835.46x = 189,360,288.40
  5. Step 5: Solve for x
    x = 189,360,288.40/15,835.46
  6. Step 6: Final answer
    x = 11,957.99

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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.