Home / 13,018.14-19,526.40-5,221.35

Finding the Fourth Proportional to 13,018.14, 19,526.40 and 5,221.35

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Solution

The fourth proportional to 13,018.14, 19,526.40 and 5,221.35 is: 7,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.14 : 19,526.40 = 5,221.35 : x
  2. Step 2: Convert to fraction form
    13,018.14/19,526.40 = 5,221.35/x
  3. Step 3: Cross multiply
    13,018.14x = 19,526.40 × 5,221.35
  4. Step 4: Simplify right side
    13,018.14x = 101,954,168.64
  5. Step 5: Solve for x
    x = 101,954,168.64/13,018.14
  6. Step 6: Final answer
    x = 7,831.70

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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.