Home / 12,482.10-18,725.80-4,690.98

Finding the Fourth Proportional to 12,482.10, 18,725.80 and 4,690.98

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Solution

The fourth proportional to 12,482.10, 18,725.80 and 4,690.98 is: 7,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.10 : 18,725.80 = 4,690.98 : x
  2. Step 2: Convert to fraction form
    12,482.10/18,725.80 = 4,690.98/x
  3. Step 3: Cross multiply
    12,482.10x = 18,725.80 × 4,690.98
  4. Step 4: Simplify right side
    12,482.10x = 87,842,353.28
  5. Step 5: Solve for x
    x = 87,842,353.28/12,482.10
  6. Step 6: Final answer
    x = 7,037.47

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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.