Home / 14,312.12-21,474.36-7,742.94

Finding the Fourth Proportional to 14,312.12, 21,474.36 and 7,742.94

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Solution

The fourth proportional to 14,312.12, 21,474.36 and 7,742.94 is: 11,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.12 : 21,474.36 = 7,742.94 : x
  2. Step 2: Convert to fraction form
    14,312.12/21,474.36 = 7,742.94/x
  3. Step 3: Cross multiply
    14,312.12x = 21,474.36 × 7,742.94
  4. Step 4: Simplify right side
    14,312.12x = 166,274,681.02
  5. Step 5: Solve for x
    x = 166,274,681.02/14,312.12
  6. Step 6: Final answer
    x = 11,617.75

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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.