Home / 13,138.47-19,710.74-4,373.46

Finding the Fourth Proportional to 13,138.47, 19,710.74 and 4,373.46

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Solution

The fourth proportional to 13,138.47, 19,710.74 and 4,373.46 is: 6,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.47 : 19,710.74 = 4,373.46 : x
  2. Step 2: Convert to fraction form
    13,138.47/19,710.74 = 4,373.46/x
  3. Step 3: Cross multiply
    13,138.47x = 19,710.74 × 4,373.46
  4. Step 4: Simplify right side
    13,138.47x = 86,204,143.89
  5. Step 5: Solve for x
    x = 86,204,143.89/13,138.47
  6. Step 6: Final answer
    x = 6,561.20

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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.