Home / 13,304.78-19,921.53-10,426.40

Finding the Fourth Proportional to 13,304.78, 19,921.53 and 10,426.40

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Solution

The fourth proportional to 13,304.78, 19,921.53 and 10,426.40 is: 15,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.78 : 19,921.53 = 10,426.40 : x
  2. Step 2: Convert to fraction form
    13,304.78/19,921.53 = 10,426.40/x
  3. Step 3: Cross multiply
    13,304.78x = 19,921.53 × 10,426.40
  4. Step 4: Simplify right side
    13,304.78x = 207,709,840.39
  5. Step 5: Solve for x
    x = 207,709,840.39/13,304.78
  6. Step 6: Final answer
    x = 15,611.67

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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.