Home / 15,058.55-20,783.69-8,689.23

Finding the Fourth Proportional to 15,058.55, 20,783.69 and 8,689.23

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Solution

The fourth proportional to 15,058.55, 20,783.69 and 8,689.23 is: 11,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.55 : 20,783.69 = 8,689.23 : x
  2. Step 2: Convert to fraction form
    15,058.55/20,783.69 = 8,689.23/x
  3. Step 3: Cross multiply
    15,058.55x = 20,783.69 × 8,689.23
  4. Step 4: Simplify right side
    15,058.55x = 180,594,219.21
  5. Step 5: Solve for x
    x = 180,594,219.21/15,058.55
  6. Step 6: Final answer
    x = 11,992.81

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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.