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Finding the Fourth Proportional to 19,423, 26,803.78 and 10,591

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Solution

The fourth proportional to 19,423, 26,803.78 and 10,591 is: 14,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,423 : 26,803.78 = 10,591 : x
  2. Step 2: Convert to fraction form
    19,423/26,803.78 = 10,591/x
  3. Step 3: Cross multiply
    19,423x = 26,803.78 × 10,591
  4. Step 4: Simplify right side
    19,423x = 283,878,833.98
  5. Step 5: Solve for x
    x = 283,878,833.98/19,423
  6. Step 6: Final answer
    x = 14,615.60

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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.