Home / 8,390.84-11,579.40-4,614.08

Finding the Fourth Proportional to 8,390.84, 11,579.40 and 4,614.08

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Solution

The fourth proportional to 8,390.84, 11,579.40 and 4,614.08 is: 6,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.84 : 11,579.40 = 4,614.08 : x
  2. Step 2: Convert to fraction form
    8,390.84/11,579.40 = 4,614.08/x
  3. Step 3: Cross multiply
    8,390.84x = 11,579.40 × 4,614.08
  4. Step 4: Simplify right side
    8,390.84x = 53,428,220.06
  5. Step 5: Solve for x
    x = 53,428,220.06/8,390.84
  6. Step 6: Final answer
    x = 6,367.45

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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.