Home / 7,018.84-9,685.52-3,875.09

Finding the Fourth Proportional to 7,018.84, 9,685.52 and 3,875.09

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Solution

The fourth proportional to 7,018.84, 9,685.52 and 3,875.09 is: 5,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.84 : 9,685.52 = 3,875.09 : x
  2. Step 2: Convert to fraction form
    7,018.84/9,685.52 = 3,875.09/x
  3. Step 3: Cross multiply
    7,018.84x = 9,685.52 × 3,875.09
  4. Step 4: Simplify right side
    7,018.84x = 37,532,261.70
  5. Step 5: Solve for x
    x = 37,532,261.70/7,018.84
  6. Step 6: Final answer
    x = 5,347.36

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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.