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Finding the Fourth Proportional to 14,510.88, 20,009.16 and 11,480.76

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Solution

The fourth proportional to 14,510.88, 20,009.16 and 11,480.76 is: 15,830.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,510.88 : 20,009.16 = 11,480.76 : x
  2. Step 2: Convert to fraction form
    14,510.88/20,009.16 = 11,480.76/x
  3. Step 3: Cross multiply
    14,510.88x = 20,009.16 × 11,480.76
  4. Step 4: Simplify right side
    14,510.88x = 229,720,363.76
  5. Step 5: Solve for x
    x = 229,720,363.76/14,510.88
  6. Step 6: Final answer
    x = 15,830.91

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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.