Home / 9,623.64-13,239-7,851.36

Finding the Fourth Proportional to 9,623.64, 13,239 and 7,851.36

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Solution

The fourth proportional to 9,623.64, 13,239 and 7,851.36 is: 10,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,623.64 : 13,239 = 7,851.36 : x
  2. Step 2: Convert to fraction form
    9,623.64/13,239 = 7,851.36/x
  3. Step 3: Cross multiply
    9,623.64x = 13,239 × 7,851.36
  4. Step 4: Simplify right side
    9,623.64x = 103,944,155.04
  5. Step 5: Solve for x
    x = 103,944,155.04/9,623.64
  6. Step 6: Final answer
    x = 10,800.92

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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.