Home / 13,042.60-19,602.30-12,812.20

Finding the Fourth Proportional to 13,042.60, 19,602.30 and 12,812.20

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Solution

The fourth proportional to 13,042.60, 19,602.30 and 12,812.20 is: 19,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.60 : 19,602.30 = 12,812.20 : x
  2. Step 2: Convert to fraction form
    13,042.60/19,602.30 = 12,812.20/x
  3. Step 3: Cross multiply
    13,042.60x = 19,602.30 × 12,812.20
  4. Step 4: Simplify right side
    13,042.60x = 251,148,588.06
  5. Step 5: Solve for x
    x = 251,148,588.06/13,042.60
  6. Step 6: Final answer
    x = 19,256.02

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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.