Home / 8,615.23-11,889.30-4,839.07

Finding the Fourth Proportional to 8,615.23, 11,889.30 and 4,839.07

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Solution

The fourth proportional to 8,615.23, 11,889.30 and 4,839.07 is: 6,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.23 : 11,889.30 = 4,839.07 : x
  2. Step 2: Convert to fraction form
    8,615.23/11,889.30 = 4,839.07/x
  3. Step 3: Cross multiply
    8,615.23x = 11,889.30 × 4,839.07
  4. Step 4: Simplify right side
    8,615.23x = 57,533,154.95
  5. Step 5: Solve for x
    x = 57,533,154.95/8,615.23
  6. Step 6: Final answer
    x = 6,678.08

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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.