Home / 9,989.09-14,983.65-3,415.34

Finding the Fourth Proportional to 9,989.09, 14,983.65 and 3,415.34

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Solution

The fourth proportional to 9,989.09, 14,983.65 and 3,415.34 is: 5,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.09 : 14,983.65 = 3,415.34 : x
  2. Step 2: Convert to fraction form
    9,989.09/14,983.65 = 3,415.34/x
  3. Step 3: Cross multiply
    9,989.09x = 14,983.65 × 3,415.34
  4. Step 4: Simplify right side
    9,989.09x = 51,174,212.37
  5. Step 5: Solve for x
    x = 51,174,212.37/9,989.09
  6. Step 6: Final answer
    x = 5,123.01

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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.