Home / 15,235.84-21,025.55-8,866.21

Finding the Fourth Proportional to 15,235.84, 21,025.55 and 8,866.21

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Solution

The fourth proportional to 15,235.84, 21,025.55 and 8,866.21 is: 12,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.84 : 21,025.55 = 8,866.21 : x
  2. Step 2: Convert to fraction form
    15,235.84/21,025.55 = 8,866.21/x
  3. Step 3: Cross multiply
    15,235.84x = 21,025.55 × 8,866.21
  4. Step 4: Simplify right side
    15,235.84x = 186,416,941.67
  5. Step 5: Solve for x
    x = 186,416,941.67/15,235.84
  6. Step 6: Final answer
    x = 12,235.42

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Half scale
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Double scale
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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.