Home / 18,986.47-28,482.95-5,838.55

Finding the Fourth Proportional to 18,986.47, 28,482.95 and 5,838.55

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Solution

The fourth proportional to 18,986.47, 28,482.95 and 5,838.55 is: 8,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.47 : 28,482.95 = 5,838.55 : x
  2. Step 2: Convert to fraction form
    18,986.47/28,482.95 = 5,838.55/x
  3. Step 3: Cross multiply
    18,986.47x = 28,482.95 × 5,838.55
  4. Step 4: Simplify right side
    18,986.47x = 166,299,127.72
  5. Step 5: Solve for x
    x = 166,299,127.72/18,986.47
  6. Step 6: Final answer
    x = 8,758.82

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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.