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Finding the Fourth Proportional to 19,036, 26,269.68 and 10,655.20

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Solution

The fourth proportional to 19,036, 26,269.68 and 10,655.20 is: 14,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036 : 26,269.68 = 10,655.20 : x
  2. Step 2: Convert to fraction form
    19,036/26,269.68 = 10,655.20/x
  3. Step 3: Cross multiply
    19,036x = 26,269.68 × 10,655.20
  4. Step 4: Simplify right side
    19,036x = 279,908,694.34
  5. Step 5: Solve for x
    x = 279,908,694.34/19,036
  6. Step 6: Final answer
    x = 14,704.18

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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.