Home / 7,985.33-11,019.69-4,628.09

Finding the Fourth Proportional to 7,985.33, 11,019.69 and 4,628.09

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Solution

The fourth proportional to 7,985.33, 11,019.69 and 4,628.09 is: 6,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.33 : 11,019.69 = 4,628.09 : x
  2. Step 2: Convert to fraction form
    7,985.33/11,019.69 = 4,628.09/x
  3. Step 3: Cross multiply
    7,985.33x = 11,019.69 × 4,628.09
  4. Step 4: Simplify right side
    7,985.33x = 51,000,061.99
  5. Step 5: Solve for x
    x = 51,000,061.99/7,985.33
  6. Step 6: Final answer
    x = 6,386.72

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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.