Home / 9,348.10-12,900.08-5,315.36

Finding the Fourth Proportional to 9,348.10, 12,900.08 and 5,315.36

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Solution

The fourth proportional to 9,348.10, 12,900.08 and 5,315.36 is: 7,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.10 : 12,900.08 = 5,315.36 : x
  2. Step 2: Convert to fraction form
    9,348.10/12,900.08 = 5,315.36/x
  3. Step 3: Cross multiply
    9,348.10x = 12,900.08 × 5,315.36
  4. Step 4: Simplify right side
    9,348.10x = 68,568,569.23
  5. Step 5: Solve for x
    x = 68,568,569.23/9,348.10
  6. Step 6: Final answer
    x = 7,335.03

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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.