Home / 14,203.38-21,307.80-6,412.20

Finding the Fourth Proportional to 14,203.38, 21,307.80 and 6,412.20

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Solution

The fourth proportional to 14,203.38, 21,307.80 and 6,412.20 is: 9,619.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.38 : 21,307.80 = 6,412.20 : x
  2. Step 2: Convert to fraction form
    14,203.38/21,307.80 = 6,412.20/x
  3. Step 3: Cross multiply
    14,203.38x = 21,307.80 × 6,412.20
  4. Step 4: Simplify right side
    14,203.38x = 136,629,875.16
  5. Step 5: Solve for x
    x = 136,629,875.16/14,203.38
  6. Step 6: Final answer
    x = 9,619.53

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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.