Home / 19,287.50-28,937.52-8,756.28

Finding the Fourth Proportional to 19,287.50, 28,937.52 and 8,756.28

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Solution

The fourth proportional to 19,287.50, 28,937.52 and 8,756.28 is: 13,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.50 : 28,937.52 = 8,756.28 : x
  2. Step 2: Convert to fraction form
    19,287.50/28,937.52 = 8,756.28/x
  3. Step 3: Cross multiply
    19,287.50x = 28,937.52 × 8,756.28
  4. Step 4: Simplify right side
    19,287.50x = 253,385,027.63
  5. Step 5: Solve for x
    x = 253,385,027.63/19,287.50
  6. Step 6: Final answer
    x = 13,137.27

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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.