Home / 14,129.80-21,185.10-5,363.40

Finding the Fourth Proportional to 14,129.80, 21,185.10 and 5,363.40

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Solution

The fourth proportional to 14,129.80, 21,185.10 and 5,363.40 is: 8,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.80 : 21,185.10 = 5,363.40 : x
  2. Step 2: Convert to fraction form
    14,129.80/21,185.10 = 5,363.40/x
  3. Step 3: Cross multiply
    14,129.80x = 21,185.10 × 5,363.40
  4. Step 4: Simplify right side
    14,129.80x = 113,624,165.34
  5. Step 5: Solve for x
    x = 113,624,165.34/14,129.80
  6. Step 6: Final answer
    x = 8,041.46

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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.