Home / 12,831.03-19,248.56-5,435.53

Finding the Fourth Proportional to 12,831.03, 19,248.56 and 5,435.53

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Solution

The fourth proportional to 12,831.03, 19,248.56 and 5,435.53 is: 8,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.03 : 19,248.56 = 5,435.53 : x
  2. Step 2: Convert to fraction form
    12,831.03/19,248.56 = 5,435.53/x
  3. Step 3: Cross multiply
    12,831.03x = 19,248.56 × 5,435.53
  4. Step 4: Simplify right side
    12,831.03x = 104,626,125.34
  5. Step 5: Solve for x
    x = 104,626,125.34/12,831.03
  6. Step 6: Final answer
    x = 8,154.15

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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.