Home / 19,002.88-28,510.56-9,140.86

Finding the Fourth Proportional to 19,002.88, 28,510.56 and 9,140.86

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Solution

The fourth proportional to 19,002.88, 28,510.56 and 9,140.86 is: 13,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.88 : 28,510.56 = 9,140.86 : x
  2. Step 2: Convert to fraction form
    19,002.88/28,510.56 = 9,140.86/x
  3. Step 3: Cross multiply
    19,002.88x = 28,510.56 × 9,140.86
  4. Step 4: Simplify right side
    19,002.88x = 260,611,037.48
  5. Step 5: Solve for x
    x = 260,611,037.48/19,002.88
  6. Step 6: Final answer
    x = 13,714.29

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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.