Home / 15,775.04-21,769.50-8,701.41

Finding the Fourth Proportional to 15,775.04, 21,769.50 and 8,701.41

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Solution

The fourth proportional to 15,775.04, 21,769.50 and 8,701.41 is: 12,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.04 : 21,769.50 = 8,701.41 : x
  2. Step 2: Convert to fraction form
    15,775.04/21,769.50 = 8,701.41/x
  3. Step 3: Cross multiply
    15,775.04x = 21,769.50 × 8,701.41
  4. Step 4: Simplify right side
    15,775.04x = 189,425,345.00
  5. Step 5: Solve for x
    x = 189,425,345.00/15,775.04
  6. Step 6: Final answer
    x = 12,007.92

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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.