Home / 13,276.28-19,895.78-10,490.70

Finding the Fourth Proportional to 13,276.28, 19,895.78 and 10,490.70

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Solution

The fourth proportional to 13,276.28, 19,895.78 and 10,490.70 is: 15,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.28 : 19,895.78 = 10,490.70 : x
  2. Step 2: Convert to fraction form
    13,276.28/19,895.78 = 10,490.70/x
  3. Step 3: Cross multiply
    13,276.28x = 19,895.78 × 10,490.70
  4. Step 4: Simplify right side
    13,276.28x = 208,720,659.25
  5. Step 5: Solve for x
    x = 208,720,659.25/13,276.28
  6. Step 6: Final answer
    x = 15,721.32

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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.