Home / 8,831.83-12,186.93-5,245.51

Finding the Fourth Proportional to 8,831.83, 12,186.93 and 5,245.51

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Solution

The fourth proportional to 8,831.83, 12,186.93 and 5,245.51 is: 7,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.83 : 12,186.93 = 5,245.51 : x
  2. Step 2: Convert to fraction form
    8,831.83/12,186.93 = 5,245.51/x
  3. Step 3: Cross multiply
    8,831.83x = 12,186.93 × 5,245.51
  4. Step 4: Simplify right side
    8,831.83x = 63,926,663.18
  5. Step 5: Solve for x
    x = 63,926,663.18/8,831.83
  6. Step 6: Final answer
    x = 7,238.21

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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.