Home / 6,513.40-9,762.81-5,212.14

Finding the Fourth Proportional to 6,513.40, 9,762.81 and 5,212.14

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Solution

The fourth proportional to 6,513.40, 9,762.81 and 5,212.14 is: 7,812.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.40 : 9,762.81 = 5,212.14 : x
  2. Step 2: Convert to fraction form
    6,513.40/9,762.81 = 5,212.14/x
  3. Step 3: Cross multiply
    6,513.40x = 9,762.81 × 5,212.14
  4. Step 4: Simplify right side
    6,513.40x = 50,885,132.51
  5. Step 5: Solve for x
    x = 50,885,132.51/6,513.40
  6. Step 6: Final answer
    x = 7,812.38

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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.