Home / 10,455.41-14,447.16-7,777.43

Finding the Fourth Proportional to 10,455.41, 14,447.16 and 7,777.43

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Solution

The fourth proportional to 10,455.41, 14,447.16 and 7,777.43 is: 10,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.41 : 14,447.16 = 7,777.43 : x
  2. Step 2: Convert to fraction form
    10,455.41/14,447.16 = 7,777.43/x
  3. Step 3: Cross multiply
    10,455.41x = 14,447.16 × 7,777.43
  4. Step 4: Simplify right side
    10,455.41x = 112,361,775.60
  5. Step 5: Solve for x
    x = 112,361,775.60/10,455.41
  6. Step 6: Final answer
    x = 10,746.76

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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.