Home / 6,864.51-9,475.62-4,215.51

Finding the Fourth Proportional to 6,864.51, 9,475.62 and 4,215.51

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Solution

The fourth proportional to 6,864.51, 9,475.62 and 4,215.51 is: 5,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.51 : 9,475.62 = 4,215.51 : x
  2. Step 2: Convert to fraction form
    6,864.51/9,475.62 = 4,215.51/x
  3. Step 3: Cross multiply
    6,864.51x = 9,475.62 × 4,215.51
  4. Step 4: Simplify right side
    6,864.51x = 39,944,570.87
  5. Step 5: Solve for x
    x = 39,944,570.87/6,864.51
  6. Step 6: Final answer
    x = 5,819.00

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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.