Home / 15,533.57-21,436.35-8,460.02

Finding the Fourth Proportional to 15,533.57, 21,436.35 and 8,460.02

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Solution

The fourth proportional to 15,533.57, 21,436.35 and 8,460.02 is: 11,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.57 : 21,436.35 = 8,460.02 : x
  2. Step 2: Convert to fraction form
    15,533.57/21,436.35 = 8,460.02/x
  3. Step 3: Cross multiply
    15,533.57x = 21,436.35 × 8,460.02
  4. Step 4: Simplify right side
    15,533.57x = 181,351,949.73
  5. Step 5: Solve for x
    x = 181,351,949.73/15,533.57
  6. Step 6: Final answer
    x = 11,674.84

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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.