Home / 19,715.70-27,207.72-10,763.40

Finding the Fourth Proportional to 19,715.70, 27,207.72 and 10,763.40

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Solution

The fourth proportional to 19,715.70, 27,207.72 and 10,763.40 is: 14,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.70 : 27,207.72 = 10,763.40 : x
  2. Step 2: Convert to fraction form
    19,715.70/27,207.72 = 10,763.40/x
  3. Step 3: Cross multiply
    19,715.70x = 27,207.72 × 10,763.40
  4. Step 4: Simplify right side
    19,715.70x = 292,847,573.45
  5. Step 5: Solve for x
    x = 292,847,573.45/19,715.70
  6. Step 6: Final answer
    x = 14,853.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.