Home / 13,106.60-19,638.30-10,903.40

Finding the Fourth Proportional to 13,106.60, 19,638.30 and 10,903.40

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Solution

The fourth proportional to 13,106.60, 19,638.30 and 10,903.40 is: 16,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.60 : 19,638.30 = 10,903.40 : x
  2. Step 2: Convert to fraction form
    13,106.60/19,638.30 = 10,903.40/x
  3. Step 3: Cross multiply
    13,106.60x = 19,638.30 × 10,903.40
  4. Step 4: Simplify right side
    13,106.60x = 214,124,240.22
  5. Step 5: Solve for x
    x = 214,124,240.22/13,106.60
  6. Step 6: Final answer
    x = 16,337.13

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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.