Home / 14,278.84-21,297.52-13,455.63

Finding the Fourth Proportional to 14,278.84, 21,297.52 and 13,455.63

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Solution

The fourth proportional to 14,278.84, 21,297.52 and 13,455.63 is: 20,069.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.84 : 21,297.52 = 13,455.63 : x
  2. Step 2: Convert to fraction form
    14,278.84/21,297.52 = 13,455.63/x
  3. Step 3: Cross multiply
    14,278.84x = 21,297.52 × 13,455.63
  4. Step 4: Simplify right side
    14,278.84x = 286,571,549.04
  5. Step 5: Solve for x
    x = 286,571,549.04/14,278.84
  6. Step 6: Final answer
    x = 20,069.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.