Home / 12,741.60-19,123.44-6,823.20

Finding the Fourth Proportional to 12,741.60, 19,123.44 and 6,823.20

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Solution

The fourth proportional to 12,741.60, 19,123.44 and 6,823.20 is: 10,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.60 : 19,123.44 = 6,823.20 : x
  2. Step 2: Convert to fraction form
    12,741.60/19,123.44 = 6,823.20/x
  3. Step 3: Cross multiply
    12,741.60x = 19,123.44 × 6,823.20
  4. Step 4: Simplify right side
    12,741.60x = 130,483,055.81
  5. Step 5: Solve for x
    x = 130,483,055.81/12,741.60
  6. Step 6: Final answer
    x = 10,240.71

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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.