Home / 13,608.29-20,423.37-7,036.40

Finding the Fourth Proportional to 13,608.29, 20,423.37 and 7,036.40

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Solution

The fourth proportional to 13,608.29, 20,423.37 and 7,036.40 is: 10,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.29 : 20,423.37 = 7,036.40 : x
  2. Step 2: Convert to fraction form
    13,608.29/20,423.37 = 7,036.40/x
  3. Step 3: Cross multiply
    13,608.29x = 20,423.37 × 7,036.40
  4. Step 4: Simplify right side
    13,608.29x = 143,707,000.67
  5. Step 5: Solve for x
    x = 143,707,000.67/13,608.29
  6. Step 6: Final answer
    x = 10,560.25

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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.