Home / 15,637.04-21,578.90-8,563.47

Finding the Fourth Proportional to 15,637.04, 21,578.90 and 8,563.47

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Solution

The fourth proportional to 15,637.04, 21,578.90 and 8,563.47 is: 11,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.04 : 21,578.90 = 8,563.47 : x
  2. Step 2: Convert to fraction form
    15,637.04/21,578.90 = 8,563.47/x
  3. Step 3: Cross multiply
    15,637.04x = 21,578.90 × 8,563.47
  4. Step 4: Simplify right side
    15,637.04x = 184,790,219.97
  5. Step 5: Solve for x
    x = 184,790,219.97/15,637.04
  6. Step 6: Final answer
    x = 11,817.47

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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.