Home / 8,786.48-12,119.37-5,248.40

Finding the Fourth Proportional to 8,786.48, 12,119.37 and 5,248.40

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Solution

The fourth proportional to 8,786.48, 12,119.37 and 5,248.40 is: 7,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.48 : 12,119.37 = 5,248.40 : x
  2. Step 2: Convert to fraction form
    8,786.48/12,119.37 = 5,248.40/x
  3. Step 3: Cross multiply
    8,786.48x = 12,119.37 × 5,248.40
  4. Step 4: Simplify right side
    8,786.48x = 63,607,301.51
  5. Step 5: Solve for x
    x = 63,607,301.51/8,786.48
  6. Step 6: Final answer
    x = 7,239.22

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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.