Home / 19,290.56-26,613.36-12,116.25

Finding the Fourth Proportional to 19,290.56, 26,613.36 and 12,116.25

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Solution

The fourth proportional to 19,290.56, 26,613.36 and 12,116.25 is: 16,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.56 : 26,613.36 = 12,116.25 : x
  2. Step 2: Convert to fraction form
    19,290.56/26,613.36 = 12,116.25/x
  3. Step 3: Cross multiply
    19,290.56x = 26,613.36 × 12,116.25
  4. Step 4: Simplify right side
    19,290.56x = 322,454,123.10
  5. Step 5: Solve for x
    x = 322,454,123.10/19,290.56
  6. Step 6: Final answer
    x = 16,715.65

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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.