Home / 7,477.49-10,318.88-4,120.27

Finding the Fourth Proportional to 7,477.49, 10,318.88 and 4,120.27

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Solution

The fourth proportional to 7,477.49, 10,318.88 and 4,120.27 is: 5,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.49 : 10,318.88 = 4,120.27 : x
  2. Step 2: Convert to fraction form
    7,477.49/10,318.88 = 4,120.27/x
  3. Step 3: Cross multiply
    7,477.49x = 10,318.88 × 4,120.27
  4. Step 4: Simplify right side
    7,477.49x = 42,516,615.71
  5. Step 5: Solve for x
    x = 42,516,615.71/7,477.49
  6. Step 6: Final answer
    x = 5,685.95

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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.