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Finding the Fourth Proportional to 19,242.50, 26,555.46 and 10,859

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Solution

The fourth proportional to 19,242.50, 26,555.46 and 10,859 is: 14,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.50 : 26,555.46 = 10,859 : x
  2. Step 2: Convert to fraction form
    19,242.50/26,555.46 = 10,859/x
  3. Step 3: Cross multiply
    19,242.50x = 26,555.46 × 10,859
  4. Step 4: Simplify right side
    19,242.50x = 288,365,740.14
  5. Step 5: Solve for x
    x = 288,365,740.14/19,242.50
  6. Step 6: Final answer
    x = 14,985.88

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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.