Home / 14,875.34-20,516.13-12,644.60

Finding the Fourth Proportional to 14,875.34, 20,516.13 and 12,644.60

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Solution

The fourth proportional to 14,875.34, 20,516.13 and 12,644.60 is: 17,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,875.34 : 20,516.13 = 12,644.60 : x
  2. Step 2: Convert to fraction form
    14,875.34/20,516.13 = 12,644.60/x
  3. Step 3: Cross multiply
    14,875.34x = 20,516.13 × 12,644.60
  4. Step 4: Simplify right side
    14,875.34x = 259,418,154.82
  5. Step 5: Solve for x
    x = 259,418,154.82/14,875.34
  6. Step 6: Final answer
    x = 17,439.48

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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.