Home / 14,225.34-21,334.81-7,988.14

Finding the Fourth Proportional to 14,225.34, 21,334.81 and 7,988.14

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Solution

The fourth proportional to 14,225.34, 21,334.81 and 7,988.14 is: 11,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.34 : 21,334.81 = 7,988.14 : x
  2. Step 2: Convert to fraction form
    14,225.34/21,334.81 = 7,988.14/x
  3. Step 3: Cross multiply
    14,225.34x = 21,334.81 × 7,988.14
  4. Step 4: Simplify right side
    14,225.34x = 170,425,449.15
  5. Step 5: Solve for x
    x = 170,425,449.15/14,225.34
  6. Step 6: Final answer
    x = 11,980.41

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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.