Home / 13,402.13-20,112.40-4,637.05

Finding the Fourth Proportional to 13,402.13, 20,112.40 and 4,637.05

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Solution

The fourth proportional to 13,402.13, 20,112.40 and 4,637.05 is: 6,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.13 : 20,112.40 = 4,637.05 : x
  2. Step 2: Convert to fraction form
    13,402.13/20,112.40 = 4,637.05/x
  3. Step 3: Cross multiply
    13,402.13x = 20,112.40 × 4,637.05
  4. Step 4: Simplify right side
    13,402.13x = 93,262,159.94
  5. Step 5: Solve for x
    x = 93,262,159.94/13,402.13
  6. Step 6: Final answer
    x = 6,958.76

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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.