Home / 14,108.40-19,470.20-7,820.36

Finding the Fourth Proportional to 14,108.40, 19,470.20 and 7,820.36

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Solution

The fourth proportional to 14,108.40, 19,470.20 and 7,820.36 is: 10,792.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.40 : 19,470.20 = 7,820.36 : x
  2. Step 2: Convert to fraction form
    14,108.40/19,470.20 = 7,820.36/x
  3. Step 3: Cross multiply
    14,108.40x = 19,470.20 × 7,820.36
  4. Step 4: Simplify right side
    14,108.40x = 152,263,973.27
  5. Step 5: Solve for x
    x = 152,263,973.27/14,108.40
  6. Step 6: Final answer
    x = 10,792.43

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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.