Home / 12,558.34-18,830.13-4,767.70

Finding the Fourth Proportional to 12,558.34, 18,830.13 and 4,767.70

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Solution

The fourth proportional to 12,558.34, 18,830.13 and 4,767.70 is: 7,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.34 : 18,830.13 = 4,767.70 : x
  2. Step 2: Convert to fraction form
    12,558.34/18,830.13 = 4,767.70/x
  3. Step 3: Cross multiply
    12,558.34x = 18,830.13 × 4,767.70
  4. Step 4: Simplify right side
    12,558.34x = 89,776,410.80
  5. Step 5: Solve for x
    x = 89,776,410.80/12,558.34
  6. Step 6: Final answer
    x = 7,148.75

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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.