Home / 19,360.34-26,728.91-12,657.18

Finding the Fourth Proportional to 19,360.34, 26,728.91 and 12,657.18

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Solution

The fourth proportional to 19,360.34, 26,728.91 and 12,657.18 is: 17,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.34 : 26,728.91 = 12,657.18 : x
  2. Step 2: Convert to fraction form
    19,360.34/26,728.91 = 12,657.18/x
  3. Step 3: Cross multiply
    19,360.34x = 26,728.91 × 12,657.18
  4. Step 4: Simplify right side
    19,360.34x = 338,312,561.79
  5. Step 5: Solve for x
    x = 338,312,561.79/19,360.34
  6. Step 6: Final answer
    x = 17,474.52

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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.