Home / 14,139.60-19,512.27-7,851.57

Finding the Fourth Proportional to 14,139.60, 19,512.27 and 7,851.57

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Solution

The fourth proportional to 14,139.60, 19,512.27 and 7,851.57 is: 10,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.60 : 19,512.27 = 7,851.57 : x
  2. Step 2: Convert to fraction form
    14,139.60/19,512.27 = 7,851.57/x
  3. Step 3: Cross multiply
    14,139.60x = 19,512.27 × 7,851.57
  4. Step 4: Simplify right side
    14,139.60x = 153,201,953.76
  5. Step 5: Solve for x
    x = 153,201,953.76/14,139.60
  6. Step 6: Final answer
    x = 10,834.96

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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.