Home / 12,457.78-18,688.60-5,062.76

Finding the Fourth Proportional to 12,457.78, 18,688.60 and 5,062.76

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Solution

The fourth proportional to 12,457.78, 18,688.60 and 5,062.76 is: 7,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.78 : 18,688.60 = 5,062.76 : x
  2. Step 2: Convert to fraction form
    12,457.78/18,688.60 = 5,062.76/x
  3. Step 3: Cross multiply
    12,457.78x = 18,688.60 × 5,062.76
  4. Step 4: Simplify right side
    12,457.78x = 94,615,896.54
  5. Step 5: Solve for x
    x = 94,615,896.54/12,457.78
  6. Step 6: Final answer
    x = 7,594.92

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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.