Home / 13,230-19,831.62-8,303.10

Finding the Fourth Proportional to 13,230, 19,831.62 and 8,303.10

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Solution

The fourth proportional to 13,230, 19,831.62 and 8,303.10 is: 12,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230 : 19,831.62 = 8,303.10 : x
  2. Step 2: Convert to fraction form
    13,230/19,831.62 = 8,303.10/x
  3. Step 3: Cross multiply
    13,230x = 19,831.62 × 8,303.10
  4. Step 4: Simplify right side
    13,230x = 164,663,924.02
  5. Step 5: Solve for x
    x = 164,663,924.02/13,230
  6. Step 6: Final answer
    x = 12,446.25

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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.