Home / 13,078.39-19,617.59-5,292.67

Finding the Fourth Proportional to 13,078.39, 19,617.59 and 5,292.67

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Solution

The fourth proportional to 13,078.39, 19,617.59 and 5,292.67 is: 7,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.39 : 19,617.59 = 5,292.67 : x
  2. Step 2: Convert to fraction form
    13,078.39/19,617.59 = 5,292.67/x
  3. Step 3: Cross multiply
    13,078.39x = 19,617.59 × 5,292.67
  4. Step 4: Simplify right side
    13,078.39x = 103,829,430.07
  5. Step 5: Solve for x
    x = 103,829,430.07/13,078.39
  6. Step 6: Final answer
    x = 7,939.01

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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.