Home / 9,905.70-13,671.26-6,130.08

Finding the Fourth Proportional to 9,905.70, 13,671.26 and 6,130.08

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Solution

The fourth proportional to 9,905.70, 13,671.26 and 6,130.08 is: 8,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.70 : 13,671.26 = 6,130.08 : x
  2. Step 2: Convert to fraction form
    9,905.70/13,671.26 = 6,130.08/x
  3. Step 3: Cross multiply
    9,905.70x = 13,671.26 × 6,130.08
  4. Step 4: Simplify right side
    9,905.70x = 83,805,896.14
  5. Step 5: Solve for x
    x = 83,805,896.14/9,905.70
  6. Step 6: Final answer
    x = 8,460.37

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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.