Home / 19,020.08-26,256.90-12,657.29

Finding the Fourth Proportional to 19,020.08, 26,256.90 and 12,657.29

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Solution

The fourth proportional to 19,020.08, 26,256.90 and 12,657.29 is: 17,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.08 : 26,256.90 = 12,657.29 : x
  2. Step 2: Convert to fraction form
    19,020.08/26,256.90 = 12,657.29/x
  3. Step 3: Cross multiply
    19,020.08x = 26,256.90 × 12,657.29
  4. Step 4: Simplify right side
    19,020.08x = 332,341,197.80
  5. Step 5: Solve for x
    x = 332,341,197.80/19,020.08
  6. Step 6: Final answer
    x = 17,473.18

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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.