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Finding the Fourth Proportional to 14,890, 20,547.80 and 8,175.58

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Solution

The fourth proportional to 14,890, 20,547.80 and 8,175.58 is: 11,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890 : 20,547.80 = 8,175.58 : x
  2. Step 2: Convert to fraction form
    14,890/20,547.80 = 8,175.58/x
  3. Step 3: Cross multiply
    14,890x = 20,547.80 × 8,175.58
  4. Step 4: Simplify right side
    14,890x = 167,990,182.72
  5. Step 5: Solve for x
    x = 167,990,182.72/14,890
  6. Step 6: Final answer
    x = 11,282.08

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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.