Home / 9,389.36-12,957.72-5,411.36

Finding the Fourth Proportional to 9,389.36, 12,957.72 and 5,411.36

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Solution

The fourth proportional to 9,389.36, 12,957.72 and 5,411.36 is: 7,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.36 : 12,957.72 = 5,411.36 : x
  2. Step 2: Convert to fraction form
    9,389.36/12,957.72 = 5,411.36/x
  3. Step 3: Cross multiply
    9,389.36x = 12,957.72 × 5,411.36
  4. Step 4: Simplify right side
    9,389.36x = 70,118,887.70
  5. Step 5: Solve for x
    x = 70,118,887.70/9,389.36
  6. Step 6: Final answer
    x = 7,467.91

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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.