Home / 18,772.84-28,158.18-5,625.46

Finding the Fourth Proportional to 18,772.84, 28,158.18 and 5,625.46

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Solution

The fourth proportional to 18,772.84, 28,158.18 and 5,625.46 is: 8,437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.84 : 28,158.18 = 5,625.46 : x
  2. Step 2: Convert to fraction form
    18,772.84/28,158.18 = 5,625.46/x
  3. Step 3: Cross multiply
    18,772.84x = 28,158.18 × 5,625.46
  4. Step 4: Simplify right side
    18,772.84x = 158,402,715.26
  5. Step 5: Solve for x
    x = 158,402,715.26/18,772.84
  6. Step 6: Final answer
    x = 8,437.87

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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.