Home / 8,140.41-11,235.78-4,605.71

Finding the Fourth Proportional to 8,140.41, 11,235.78 and 4,605.71

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Solution

The fourth proportional to 8,140.41, 11,235.78 and 4,605.71 is: 6,357.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.41 : 11,235.78 = 4,605.71 : x
  2. Step 2: Convert to fraction form
    8,140.41/11,235.78 = 4,605.71/x
  3. Step 3: Cross multiply
    8,140.41x = 11,235.78 × 4,605.71
  4. Step 4: Simplify right side
    8,140.41x = 51,748,688.12
  5. Step 5: Solve for x
    x = 51,748,688.12/8,140.41
  6. Step 6: Final answer
    x = 6,357.01

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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.