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Finding the Fourth Proportional to 19,373.65, 29,061.79 and 8,280.29

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Solution

The fourth proportional to 19,373.65, 29,061.79 and 8,280.29 is: 12,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,373.65 : 29,061.79 = 8,280.29 : x
  2. Step 2: Convert to fraction form
    19,373.65/29,061.79 = 8,280.29/x
  3. Step 3: Cross multiply
    19,373.65x = 29,061.79 × 8,280.29
  4. Step 4: Simplify right side
    19,373.65x = 240,640,101.07
  5. Step 5: Solve for x
    x = 240,640,101.07/19,373.65
  6. Step 6: Final answer
    x = 12,421.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.