Home / 12,383.79-18,575.49-4,988.06

Finding the Fourth Proportional to 12,383.79, 18,575.49 and 4,988.06

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Solution

The fourth proportional to 12,383.79, 18,575.49 and 4,988.06 is: 7,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.79 : 18,575.49 = 4,988.06 : x
  2. Step 2: Convert to fraction form
    12,383.79/18,575.49 = 4,988.06/x
  3. Step 3: Cross multiply
    12,383.79x = 18,575.49 × 4,988.06
  4. Step 4: Simplify right side
    12,383.79x = 92,655,658.65
  5. Step 5: Solve for x
    x = 92,655,658.65/12,383.79
  6. Step 6: Final answer
    x = 7,482.01

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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.