Home / 6,921.70-10,386.20-4,153.93

Finding the Fourth Proportional to 6,921.70, 10,386.20 and 4,153.93

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Solution

The fourth proportional to 6,921.70, 10,386.20 and 4,153.93 is: 6,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.70 : 10,386.20 = 4,153.93 : x
  2. Step 2: Convert to fraction form
    6,921.70/10,386.20 = 4,153.93/x
  3. Step 3: Cross multiply
    6,921.70x = 10,386.20 × 4,153.93
  4. Step 4: Simplify right side
    6,921.70x = 43,143,547.77
  5. Step 5: Solve for x
    x = 43,143,547.77/6,921.70
  6. Step 6: Final answer
    x = 6,233.09

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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.