Home / 13,089.29-18,059.21-7,423.74

Finding the Fourth Proportional to 13,089.29, 18,059.21 and 7,423.74

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Solution

The fourth proportional to 13,089.29, 18,059.21 and 7,423.74 is: 10,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.29 : 18,059.21 = 7,423.74 : x
  2. Step 2: Convert to fraction form
    13,089.29/18,059.21 = 7,423.74/x
  3. Step 3: Cross multiply
    13,089.29x = 18,059.21 × 7,423.74
  4. Step 4: Simplify right side
    13,089.29x = 134,066,879.65
  5. Step 5: Solve for x
    x = 134,066,879.65/13,089.29
  6. Step 6: Final answer
    x = 10,242.49

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.