Home / 7,152.36-9,875.70-5,584.20

Finding the Fourth Proportional to 7,152.36, 9,875.70 and 5,584.20

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Solution

The fourth proportional to 7,152.36, 9,875.70 and 5,584.20 is: 7,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.36 : 9,875.70 = 5,584.20 : x
  2. Step 2: Convert to fraction form
    7,152.36/9,875.70 = 5,584.20/x
  3. Step 3: Cross multiply
    7,152.36x = 9,875.70 × 5,584.20
  4. Step 4: Simplify right side
    7,152.36x = 55,147,883.94
  5. Step 5: Solve for x
    x = 55,147,883.94/7,152.36
  6. Step 6: Final answer
    x = 7,710.45

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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.