Home / 15,077.23-20,807.69-8,362.80

Finding the Fourth Proportional to 15,077.23, 20,807.69 and 8,362.80

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Solution

The fourth proportional to 15,077.23, 20,807.69 and 8,362.80 is: 11,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.23 : 20,807.69 = 8,362.80 : x
  2. Step 2: Convert to fraction form
    15,077.23/20,807.69 = 8,362.80/x
  3. Step 3: Cross multiply
    15,077.23x = 20,807.69 × 8,362.80
  4. Step 4: Simplify right side
    15,077.23x = 174,010,508.12
  5. Step 5: Solve for x
    x = 174,010,508.12/15,077.23
  6. Step 6: Final answer
    x = 11,541.28

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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.