Home / 12,088.80-18,133.20-5,829.78

Finding the Fourth Proportional to 12,088.80, 18,133.20 and 5,829.78

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Solution

The fourth proportional to 12,088.80, 18,133.20 and 5,829.78 is: 8,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.80 : 18,133.20 = 5,829.78 : x
  2. Step 2: Convert to fraction form
    12,088.80/18,133.20 = 5,829.78/x
  3. Step 3: Cross multiply
    12,088.80x = 18,133.20 × 5,829.78
  4. Step 4: Simplify right side
    12,088.80x = 105,712,566.70
  5. Step 5: Solve for x
    x = 105,712,566.70/12,088.80
  6. Step 6: Final answer
    x = 8,744.67

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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.