Home / 14,230.80-21,365.40-11,312.40

Finding the Fourth Proportional to 14,230.80, 21,365.40 and 11,312.40

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Solution

The fourth proportional to 14,230.80, 21,365.40 and 11,312.40 is: 16,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,230.80 : 21,365.40 = 11,312.40 : x
  2. Step 2: Convert to fraction form
    14,230.80/21,365.40 = 11,312.40/x
  3. Step 3: Cross multiply
    14,230.80x = 21,365.40 × 11,312.40
  4. Step 4: Simplify right side
    14,230.80x = 241,693,950.96
  5. Step 5: Solve for x
    x = 241,693,950.96/14,230.80
  6. Step 6: Final answer
    x = 16,983.86

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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.