Home / 6,864.60-9,488.70-6,320.28

Finding the Fourth Proportional to 6,864.60, 9,488.70 and 6,320.28

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Solution

The fourth proportional to 6,864.60, 9,488.70 and 6,320.28 is: 8,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.60 : 9,488.70 = 6,320.28 : x
  2. Step 2: Convert to fraction form
    6,864.60/9,488.70 = 6,320.28/x
  3. Step 3: Cross multiply
    6,864.60x = 9,488.70 × 6,320.28
  4. Step 4: Simplify right side
    6,864.60x = 59,971,240.84
  5. Step 5: Solve for x
    x = 59,971,240.84/6,864.60
  6. Step 6: Final answer
    x = 8,736.31

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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.