Home / 14,108.40-21,130.80-10,963.92

Finding the Fourth Proportional to 14,108.40, 21,130.80 and 10,963.92

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Solution

The fourth proportional to 14,108.40, 21,130.80 and 10,963.92 is: 16,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.40 : 21,130.80 = 10,963.92 : x
  2. Step 2: Convert to fraction form
    14,108.40/21,130.80 = 10,963.92/x
  3. Step 3: Cross multiply
    14,108.40x = 21,130.80 × 10,963.92
  4. Step 4: Simplify right side
    14,108.40x = 231,676,400.74
  5. Step 5: Solve for x
    x = 231,676,400.74/14,108.40
  6. Step 6: Final answer
    x = 16,421.17

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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.