Home / 15,907.61-23,862.36-4,220.80

Finding the Fourth Proportional to 15,907.61, 23,862.36 and 4,220.80

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Solution

The fourth proportional to 15,907.61, 23,862.36 and 4,220.80 is: 6,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.61 : 23,862.36 = 4,220.80 : x
  2. Step 2: Convert to fraction form
    15,907.61/23,862.36 = 4,220.80/x
  3. Step 3: Cross multiply
    15,907.61x = 23,862.36 × 4,220.80
  4. Step 4: Simplify right side
    15,907.61x = 100,718,205.26
  5. Step 5: Solve for x
    x = 100,718,205.26/15,907.61
  6. Step 6: Final answer
    x = 6,331.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.