Home / 9,334.09-12,858.51-7,842.07

Finding the Fourth Proportional to 9,334.09, 12,858.51 and 7,842.07

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Solution

The fourth proportional to 9,334.09, 12,858.51 and 7,842.07 is: 10,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.09 : 12,858.51 = 7,842.07 : x
  2. Step 2: Convert to fraction form
    9,334.09/12,858.51 = 7,842.07/x
  3. Step 3: Cross multiply
    9,334.09x = 12,858.51 × 7,842.07
  4. Step 4: Simplify right side
    9,334.09x = 100,837,335.52
  5. Step 5: Solve for x
    x = 100,837,335.52/9,334.09
  6. Step 6: Final answer
    x = 10,803.12

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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.