Home / 7,854.09-11,778.64-2,588.12

Finding the Fourth Proportional to 7,854.09, 11,778.64 and 2,588.12

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Solution

The fourth proportional to 7,854.09, 11,778.64 and 2,588.12 is: 3,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.09 : 11,778.64 = 2,588.12 : x
  2. Step 2: Convert to fraction form
    7,854.09/11,778.64 = 2,588.12/x
  3. Step 3: Cross multiply
    7,854.09x = 11,778.64 × 2,588.12
  4. Step 4: Simplify right side
    7,854.09x = 30,484,507.71
  5. Step 5: Solve for x
    x = 30,484,507.71/7,854.09
  6. Step 6: Final answer
    x = 3,881.35

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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.