Home / 18,647.04-25,733.76-10,688.64

Finding the Fourth Proportional to 18,647.04, 25,733.76 and 10,688.64

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Solution

The fourth proportional to 18,647.04, 25,733.76 and 10,688.64 is: 14,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.04 : 25,733.76 = 10,688.64 : x
  2. Step 2: Convert to fraction form
    18,647.04/25,733.76 = 10,688.64/x
  3. Step 3: Cross multiply
    18,647.04x = 25,733.76 × 10,688.64
  4. Step 4: Simplify right side
    18,647.04x = 275,058,896.49
  5. Step 5: Solve for x
    x = 275,058,896.49/18,647.04
  6. Step 6: Final answer
    x = 14,750.81

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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.