Home / 15,830.02-21,845.43-8,757.50

Finding the Fourth Proportional to 15,830.02, 21,845.43 and 8,757.50

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Solution

The fourth proportional to 15,830.02, 21,845.43 and 8,757.50 is: 12,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,830.02 : 21,845.43 = 8,757.50 : x
  2. Step 2: Convert to fraction form
    15,830.02/21,845.43 = 8,757.50/x
  3. Step 3: Cross multiply
    15,830.02x = 21,845.43 × 8,757.50
  4. Step 4: Simplify right side
    15,830.02x = 191,311,366.88
  5. Step 5: Solve for x
    x = 191,311,366.88/15,830.02
  6. Step 6: Final answer
    x = 12,085.36

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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.