Home / 19,817.76-27,349.20-10,865.28

Finding the Fourth Proportional to 19,817.76, 27,349.20 and 10,865.28

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Solution

The fourth proportional to 19,817.76, 27,349.20 and 10,865.28 is: 14,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.76 : 27,349.20 = 10,865.28 : x
  2. Step 2: Convert to fraction form
    19,817.76/27,349.20 = 10,865.28/x
  3. Step 3: Cross multiply
    19,817.76x = 27,349.20 × 10,865.28
  4. Step 4: Simplify right side
    19,817.76x = 297,156,715.78
  5. Step 5: Solve for x
    x = 297,156,715.78/19,817.76
  6. Step 6: Final answer
    x = 14,994.47

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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.