Home / 7,089.36-10,636.56-6,315.36

Finding the Fourth Proportional to 7,089.36, 10,636.56 and 6,315.36

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Solution

The fourth proportional to 7,089.36, 10,636.56 and 6,315.36 is: 9,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.36 : 10,636.56 = 6,315.36 : x
  2. Step 2: Convert to fraction form
    7,089.36/10,636.56 = 6,315.36/x
  3. Step 3: Cross multiply
    7,089.36x = 10,636.56 × 6,315.36
  4. Step 4: Simplify right side
    7,089.36x = 67,173,705.56
  5. Step 5: Solve for x
    x = 67,173,705.56/7,089.36
  6. Step 6: Final answer
    x = 9,475.28

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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.