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Finding the Fourth Proportional to 18,888.36, 28,332.54 and 5,037

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Solution

The fourth proportional to 18,888.36, 28,332.54 and 5,037 is: 7,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.36 : 28,332.54 = 5,037 : x
  2. Step 2: Convert to fraction form
    18,888.36/28,332.54 = 5,037/x
  3. Step 3: Cross multiply
    18,888.36x = 28,332.54 × 5,037
  4. Step 4: Simplify right side
    18,888.36x = 142,711,003.98
  5. Step 5: Solve for x
    x = 142,711,003.98/18,888.36
  6. Step 6: Final answer
    x = 7,555.50

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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.