Home / 13,225.60-19,838.40-8,300.80

Finding the Fourth Proportional to 13,225.60, 19,838.40 and 8,300.80

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Solution

The fourth proportional to 13,225.60, 19,838.40 and 8,300.80 is: 12,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.60 : 19,838.40 = 8,300.80 : x
  2. Step 2: Convert to fraction form
    13,225.60/19,838.40 = 8,300.80/x
  3. Step 3: Cross multiply
    13,225.60x = 19,838.40 × 8,300.80
  4. Step 4: Simplify right side
    13,225.60x = 164,674,590.72
  5. Step 5: Solve for x
    x = 164,674,590.72/13,225.60
  6. Step 6: Final answer
    x = 12,451.20

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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.