Home / 14,458.10-21,730.35-12,557.30

Finding the Fourth Proportional to 14,458.10, 21,730.35 and 12,557.30

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Solution

The fourth proportional to 14,458.10, 21,730.35 and 12,557.30 is: 18,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.10 : 21,730.35 = 12,557.30 : x
  2. Step 2: Convert to fraction form
    14,458.10/21,730.35 = 12,557.30/x
  3. Step 3: Cross multiply
    14,458.10x = 21,730.35 × 12,557.30
  4. Step 4: Simplify right side
    14,458.10x = 272,874,524.06
  5. Step 5: Solve for x
    x = 272,874,524.06/14,458.10
  6. Step 6: Final answer
    x = 18,873.47

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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.