Home / 7,347.38-10,142.70-4,698.36

Finding the Fourth Proportional to 7,347.38, 10,142.70 and 4,698.36

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Solution

The fourth proportional to 7,347.38, 10,142.70 and 4,698.36 is: 6,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.38 : 10,142.70 = 4,698.36 : x
  2. Step 2: Convert to fraction form
    7,347.38/10,142.70 = 4,698.36/x
  3. Step 3: Cross multiply
    7,347.38x = 10,142.70 × 4,698.36
  4. Step 4: Simplify right side
    7,347.38x = 47,654,055.97
  5. Step 5: Solve for x
    x = 47,654,055.97/7,347.38
  6. Step 6: Final answer
    x = 6,485.86

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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.