Home / 9,328.36-12,873.18-5,079.40

Finding the Fourth Proportional to 9,328.36, 12,873.18 and 5,079.40

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Solution

The fourth proportional to 9,328.36, 12,873.18 and 5,079.40 is: 7,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.36 : 12,873.18 = 5,079.40 : x
  2. Step 2: Convert to fraction form
    9,328.36/12,873.18 = 5,079.40/x
  3. Step 3: Cross multiply
    9,328.36x = 12,873.18 × 5,079.40
  4. Step 4: Simplify right side
    9,328.36x = 65,388,030.49
  5. Step 5: Solve for x
    x = 65,388,030.49/9,328.36
  6. Step 6: Final answer
    x = 7,009.60

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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.