Home / 14,283.79-19,711.60-7,910.71

Finding the Fourth Proportional to 14,283.79, 19,711.60 and 7,910.71

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Solution

The fourth proportional to 14,283.79, 19,711.60 and 7,910.71 is: 10,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.79 : 19,711.60 = 7,910.71 : x
  2. Step 2: Convert to fraction form
    14,283.79/19,711.60 = 7,910.71/x
  3. Step 3: Cross multiply
    14,283.79x = 19,711.60 × 7,910.71
  4. Step 4: Simplify right side
    14,283.79x = 155,932,751.24
  5. Step 5: Solve for x
    x = 155,932,751.24/14,283.79
  6. Step 6: Final answer
    x = 10,916.76

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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.