Home / 6,947.49-10,421.19-5,905.02

Finding the Fourth Proportional to 6,947.49, 10,421.19 and 5,905.02

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Solution

The fourth proportional to 6,947.49, 10,421.19 and 5,905.02 is: 8,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.49 : 10,421.19 = 5,905.02 : x
  2. Step 2: Convert to fraction form
    6,947.49/10,421.19 = 5,905.02/x
  3. Step 3: Cross multiply
    6,947.49x = 10,421.19 × 5,905.02
  4. Step 4: Simplify right side
    6,947.49x = 61,537,335.37
  5. Step 5: Solve for x
    x = 61,537,335.37/6,947.49
  6. Step 6: Final answer
    x = 8,857.49

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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.