Home / 15,646.77-23,456.79-5,784.21

Finding the Fourth Proportional to 15,646.77, 23,456.79 and 5,784.21

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Solution

The fourth proportional to 15,646.77, 23,456.79 and 5,784.21 is: 8,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.77 : 23,456.79 = 5,784.21 : x
  2. Step 2: Convert to fraction form
    15,646.77/23,456.79 = 5,784.21/x
  3. Step 3: Cross multiply
    15,646.77x = 23,456.79 × 5,784.21
  4. Step 4: Simplify right side
    15,646.77x = 135,678,999.29
  5. Step 5: Solve for x
    x = 135,678,999.29/15,646.77
  6. Step 6: Final answer
    x = 8,671.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.