Home / 12,140.16-16,738.56-9,617.28

Finding the Fourth Proportional to 12,140.16, 16,738.56 and 9,617.28

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Solution

The fourth proportional to 12,140.16, 16,738.56 and 9,617.28 is: 13,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.16 : 16,738.56 = 9,617.28 : x
  2. Step 2: Convert to fraction form
    12,140.16/16,738.56 = 9,617.28/x
  3. Step 3: Cross multiply
    12,140.16x = 16,738.56 × 9,617.28
  4. Step 4: Simplify right side
    12,140.16x = 160,979,418.32
  5. Step 5: Solve for x
    x = 160,979,418.32/12,140.16
  6. Step 6: Final answer
    x = 13,260.07

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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.