Home / 9,368.15-12,928.19-5,119.29

Finding the Fourth Proportional to 9,368.15, 12,928.19 and 5,119.29

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Solution

The fourth proportional to 9,368.15, 12,928.19 and 5,119.29 is: 7,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.15 : 12,928.19 = 5,119.29 : x
  2. Step 2: Convert to fraction form
    9,368.15/12,928.19 = 5,119.29/x
  3. Step 3: Cross multiply
    9,368.15x = 12,928.19 × 5,119.29
  4. Step 4: Simplify right side
    9,368.15x = 66,183,128.19
  5. Step 5: Solve for x
    x = 66,183,128.19/9,368.15
  6. Step 6: Final answer
    x = 7,064.70

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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.