Home / 14,280.28-19,707.07-8,543.65

Finding the Fourth Proportional to 14,280.28, 19,707.07 and 8,543.65

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Solution

The fourth proportional to 14,280.28, 19,707.07 and 8,543.65 is: 11,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.28 : 19,707.07 = 8,543.65 : x
  2. Step 2: Convert to fraction form
    14,280.28/19,707.07 = 8,543.65/x
  3. Step 3: Cross multiply
    14,280.28x = 19,707.07 × 8,543.65
  4. Step 4: Simplify right side
    14,280.28x = 168,370,308.61
  5. Step 5: Solve for x
    x = 168,370,308.61/14,280.28
  6. Step 6: Final answer
    x = 11,790.41

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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.