Home / 19,613.10-27,071.91-12,903.87

Finding the Fourth Proportional to 19,613.10, 27,071.91 and 12,903.87

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Solution

The fourth proportional to 19,613.10, 27,071.91 and 12,903.87 is: 17,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.10 : 27,071.91 = 12,903.87 : x
  2. Step 2: Convert to fraction form
    19,613.10/27,071.91 = 12,903.87/x
  3. Step 3: Cross multiply
    19,613.10x = 27,071.91 × 12,903.87
  4. Step 4: Simplify right side
    19,613.10x = 349,332,407.29
  5. Step 5: Solve for x
    x = 349,332,407.29/19,613.10
  6. Step 6: Final answer
    x = 17,811.18

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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.