Home / 13,259.34-19,889.01-6,312.78

Finding the Fourth Proportional to 13,259.34, 19,889.01 and 6,312.78

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Solution

The fourth proportional to 13,259.34, 19,889.01 and 6,312.78 is: 9,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.34 : 19,889.01 = 6,312.78 : x
  2. Step 2: Convert to fraction form
    13,259.34/19,889.01 = 6,312.78/x
  3. Step 3: Cross multiply
    13,259.34x = 19,889.01 × 6,312.78
  4. Step 4: Simplify right side
    13,259.34x = 125,554,944.55
  5. Step 5: Solve for x
    x = 125,554,944.55/13,259.34
  6. Step 6: Final answer
    x = 9,469.17

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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.