Home / 15,533.67-21,436.47-8,460.12

Finding the Fourth Proportional to 15,533.67, 21,436.47 and 8,460.12

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Solution

The fourth proportional to 15,533.67, 21,436.47 and 8,460.12 is: 11,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.67 : 21,436.47 = 8,460.12 : x
  2. Step 2: Convert to fraction form
    15,533.67/21,436.47 = 8,460.12/x
  3. Step 3: Cross multiply
    15,533.67x = 21,436.47 × 8,460.12
  4. Step 4: Simplify right side
    15,533.67x = 181,355,108.58
  5. Step 5: Solve for x
    x = 181,355,108.58/15,533.67
  6. Step 6: Final answer
    x = 11,674.97

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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.