Home / 19,158.50-28,717.30-9,276.10

Finding the Fourth Proportional to 19,158.50, 28,717.30 and 9,276.10

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Solution

The fourth proportional to 19,158.50, 28,717.30 and 9,276.10 is: 13,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.50 : 28,717.30 = 9,276.10 : x
  2. Step 2: Convert to fraction form
    19,158.50/28,717.30 = 9,276.10/x
  3. Step 3: Cross multiply
    19,158.50x = 28,717.30 × 9,276.10
  4. Step 4: Simplify right side
    19,158.50x = 266,384,546.53
  5. Step 5: Solve for x
    x = 266,384,546.53/19,158.50
  6. Step 6: Final answer
    x = 13,904.25

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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.