Home / 19,156.80-28,708.58-10,715.70

Finding the Fourth Proportional to 19,156.80, 28,708.58 and 10,715.70

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Solution

The fourth proportional to 19,156.80, 28,708.58 and 10,715.70 is: 16,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.80 : 28,708.58 = 10,715.70 : x
  2. Step 2: Convert to fraction form
    19,156.80/28,708.58 = 10,715.70/x
  3. Step 3: Cross multiply
    19,156.80x = 28,708.58 × 10,715.70
  4. Step 4: Simplify right side
    19,156.80x = 307,632,530.71
  5. Step 5: Solve for x
    x = 307,632,530.71/19,156.80
  6. Step 6: Final answer
    x = 16,058.66

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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.