Home / 13,479.64-20,224.30-4,715.84

Finding the Fourth Proportional to 13,479.64, 20,224.30 and 4,715.84

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Solution

The fourth proportional to 13,479.64, 20,224.30 and 4,715.84 is: 7,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.64 : 20,224.30 = 4,715.84 : x
  2. Step 2: Convert to fraction form
    13,479.64/20,224.30 = 4,715.84/x
  3. Step 3: Cross multiply
    13,479.64x = 20,224.30 × 4,715.84
  4. Step 4: Simplify right side
    13,479.64x = 95,374,562.91
  5. Step 5: Solve for x
    x = 95,374,562.91/13,479.64
  6. Step 6: Final answer
    x = 7,075.45

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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.