Home / 14,225.85-19,631.69-7,938.22

Finding the Fourth Proportional to 14,225.85, 19,631.69 and 7,938.22

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Solution

The fourth proportional to 14,225.85, 19,631.69 and 7,938.22 is: 10,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.85 : 19,631.69 = 7,938.22 : x
  2. Step 2: Convert to fraction form
    14,225.85/19,631.69 = 7,938.22/x
  3. Step 3: Cross multiply
    14,225.85x = 19,631.69 × 7,938.22
  4. Step 4: Simplify right side
    14,225.85x = 155,840,674.19
  5. Step 5: Solve for x
    x = 155,840,674.19/14,225.85
  6. Step 6: Final answer
    x = 10,954.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.