Home / 10,137.48-13,987.60-6,156.40

Finding the Fourth Proportional to 10,137.48, 13,987.60 and 6,156.40

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Solution

The fourth proportional to 10,137.48, 13,987.60 and 6,156.40 is: 8,494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.48 : 13,987.60 = 6,156.40 : x
  2. Step 2: Convert to fraction form
    10,137.48/13,987.60 = 6,156.40/x
  3. Step 3: Cross multiply
    10,137.48x = 13,987.60 × 6,156.40
  4. Step 4: Simplify right side
    10,137.48x = 86,113,260.64
  5. Step 5: Solve for x
    x = 86,113,260.64/10,137.48
  6. Step 6: Final answer
    x = 8,494.54

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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.