Home / 14,008.12-21,011.42-5,242.30

Finding the Fourth Proportional to 14,008.12, 21,011.42 and 5,242.30

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Solution

The fourth proportional to 14,008.12, 21,011.42 and 5,242.30 is: 7,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.12 : 21,011.42 = 5,242.30 : x
  2. Step 2: Convert to fraction form
    14,008.12/21,011.42 = 5,242.30/x
  3. Step 3: Cross multiply
    14,008.12x = 21,011.42 × 5,242.30
  4. Step 4: Simplify right side
    14,008.12x = 110,148,167.07
  5. Step 5: Solve for x
    x = 110,148,167.07/14,008.12
  6. Step 6: Final answer
    x = 7,863.17

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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.