Home / 14,285.02-19,712.86-7,911.88

Finding the Fourth Proportional to 14,285.02, 19,712.86 and 7,911.88

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Solution

The fourth proportional to 14,285.02, 19,712.86 and 7,911.88 is: 10,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.02 : 19,712.86 = 7,911.88 : x
  2. Step 2: Convert to fraction form
    14,285.02/19,712.86 = 7,911.88/x
  3. Step 3: Cross multiply
    14,285.02x = 19,712.86 × 7,911.88
  4. Step 4: Simplify right side
    14,285.02x = 155,965,782.78
  5. Step 5: Solve for x
    x = 155,965,782.78/14,285.02
  6. Step 6: Final answer
    x = 10,918.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.