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Finding the Fourth Proportional to 14,361, 19,818.18 and 8,075.40

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Solution

The fourth proportional to 14,361, 19,818.18 and 8,075.40 is: 11,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361 : 19,818.18 = 8,075.40 : x
  2. Step 2: Convert to fraction form
    14,361/19,818.18 = 8,075.40/x
  3. Step 3: Cross multiply
    14,361x = 19,818.18 × 8,075.40
  4. Step 4: Simplify right side
    14,361x = 160,039,730.77
  5. Step 5: Solve for x
    x = 160,039,730.77/14,361
  6. Step 6: Final answer
    x = 11,144.05

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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.