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Finding the Fourth Proportional to 19,491, 26,897.58 and 10,659

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Solution

The fourth proportional to 19,491, 26,897.58 and 10,659 is: 14,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491 : 26,897.58 = 10,659 : x
  2. Step 2: Convert to fraction form
    19,491/26,897.58 = 10,659/x
  3. Step 3: Cross multiply
    19,491x = 26,897.58 × 10,659
  4. Step 4: Simplify right side
    19,491x = 286,701,305.22
  5. Step 5: Solve for x
    x = 286,701,305.22/19,491
  6. Step 6: Final answer
    x = 14,709.42

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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.