Home / 9,313.36-12,852.68-5,121.72

Finding the Fourth Proportional to 9,313.36, 12,852.68 and 5,121.72

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Solution

The fourth proportional to 9,313.36, 12,852.68 and 5,121.72 is: 7,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.36 : 12,852.68 = 5,121.72 : x
  2. Step 2: Convert to fraction form
    9,313.36/12,852.68 = 5,121.72/x
  3. Step 3: Cross multiply
    9,313.36x = 12,852.68 × 5,121.72
  4. Step 4: Simplify right side
    9,313.36x = 65,827,828.21
  5. Step 5: Solve for x
    x = 65,827,828.21/9,313.36
  6. Step 6: Final answer
    x = 7,068.11

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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.