Home / 15,550.36-21,460-8,835.59

Finding the Fourth Proportional to 15,550.36, 21,460 and 8,835.59

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Solution

The fourth proportional to 15,550.36, 21,460 and 8,835.59 is: 12,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.36 : 21,460 = 8,835.59 : x
  2. Step 2: Convert to fraction form
    15,550.36/21,460 = 8,835.59/x
  3. Step 3: Cross multiply
    15,550.36x = 21,460 × 8,835.59
  4. Step 4: Simplify right side
    15,550.36x = 189,611,761.40
  5. Step 5: Solve for x
    x = 189,611,761.40/15,550.36
  6. Step 6: Final answer
    x = 12,193.40

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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.