Home / 19,351.60-26,708.18-10,857.16

Finding the Fourth Proportional to 19,351.60, 26,708.18 and 10,857.16

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Solution

The fourth proportional to 19,351.60, 26,708.18 and 10,857.16 is: 14,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.60 : 26,708.18 = 10,857.16 : x
  2. Step 2: Convert to fraction form
    19,351.60/26,708.18 = 10,857.16/x
  3. Step 3: Cross multiply
    19,351.60x = 26,708.18 × 10,857.16
  4. Step 4: Simplify right side
    19,351.60x = 289,974,983.57
  5. Step 5: Solve for x
    x = 289,974,983.57/19,351.60
  6. Step 6: Final answer
    x = 14,984.55

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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.