Home / 15,907.20-23,840.40-8,887.20

Finding the Fourth Proportional to 15,907.20, 23,840.40 and 8,887.20

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Solution

The fourth proportional to 15,907.20, 23,840.40 and 8,887.20 is: 13,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.20 : 23,840.40 = 8,887.20 : x
  2. Step 2: Convert to fraction form
    15,907.20/23,840.40 = 8,887.20/x
  3. Step 3: Cross multiply
    15,907.20x = 23,840.40 × 8,887.20
  4. Step 4: Simplify right side
    15,907.20x = 211,874,402.88
  5. Step 5: Solve for x
    x = 211,874,402.88/15,907.20
  6. Step 6: Final answer
    x = 13,319.40

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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.