Home / 12,726.28-19,088.46-5,703.40

Finding the Fourth Proportional to 12,726.28, 19,088.46 and 5,703.40

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Solution

The fourth proportional to 12,726.28, 19,088.46 and 5,703.40 is: 8,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.28 : 19,088.46 = 5,703.40 : x
  2. Step 2: Convert to fraction form
    12,726.28/19,088.46 = 5,703.40/x
  3. Step 3: Cross multiply
    12,726.28x = 19,088.46 × 5,703.40
  4. Step 4: Simplify right side
    12,726.28x = 108,869,122.76
  5. Step 5: Solve for x
    x = 108,869,122.76/12,726.28
  6. Step 6: Final answer
    x = 8,554.67

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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.