Home / 12,130.56-16,740.48-7,417.44

Finding the Fourth Proportional to 12,130.56, 16,740.48 and 7,417.44

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Solution

The fourth proportional to 12,130.56, 16,740.48 and 7,417.44 is: 10,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.56 : 16,740.48 = 7,417.44 : x
  2. Step 2: Convert to fraction form
    12,130.56/16,740.48 = 7,417.44/x
  3. Step 3: Cross multiply
    12,130.56x = 16,740.48 × 7,417.44
  4. Step 4: Simplify right side
    12,130.56x = 124,171,505.97
  5. Step 5: Solve for x
    x = 124,171,505.97/12,130.56
  6. Step 6: Final answer
    x = 10,236.26

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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.