Home / 12,497.79-18,748.86-4,176.93

Finding the Fourth Proportional to 12,497.79, 18,748.86 and 4,176.93

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Solution

The fourth proportional to 12,497.79, 18,748.86 and 4,176.93 is: 6,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.79 : 18,748.86 = 4,176.93 : x
  2. Step 2: Convert to fraction form
    12,497.79/18,748.86 = 4,176.93/x
  3. Step 3: Cross multiply
    12,497.79x = 18,748.86 × 4,176.93
  4. Step 4: Simplify right side
    12,497.79x = 78,312,675.80
  5. Step 5: Solve for x
    x = 78,312,675.80/12,497.79
  6. Step 6: Final answer
    x = 6,266.12

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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.