Home / 15,567.84-21,483.36-8,853.60

Finding the Fourth Proportional to 15,567.84, 21,483.36 and 8,853.60

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Solution

The fourth proportional to 15,567.84, 21,483.36 and 8,853.60 is: 12,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.84 : 21,483.36 = 8,853.60 : x
  2. Step 2: Convert to fraction form
    15,567.84/21,483.36 = 8,853.60/x
  3. Step 3: Cross multiply
    15,567.84x = 21,483.36 × 8,853.60
  4. Step 4: Simplify right side
    15,567.84x = 190,205,076.10
  5. Step 5: Solve for x
    x = 190,205,076.10/15,567.84
  6. Step 6: Final answer
    x = 12,217.82

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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.