Home / 19,812.29-29,689.28-8,708.81

Finding the Fourth Proportional to 19,812.29, 29,689.28 and 8,708.81

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Solution

The fourth proportional to 19,812.29, 29,689.28 and 8,708.81 is: 13,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.29 : 29,689.28 = 8,708.81 : x
  2. Step 2: Convert to fraction form
    19,812.29/29,689.28 = 8,708.81/x
  3. Step 3: Cross multiply
    19,812.29x = 29,689.28 × 8,708.81
  4. Step 4: Simplify right side
    19,812.29x = 258,558,255.01
  5. Step 5: Solve for x
    x = 258,558,255.01/19,812.29
  6. Step 6: Final answer
    x = 13,050.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.