Home / 10,620.80-14,656.80-5,904.96

Finding the Fourth Proportional to 10,620.80, 14,656.80 and 5,904.96

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Solution

The fourth proportional to 10,620.80, 14,656.80 and 5,904.96 is: 8,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.80 : 14,656.80 = 5,904.96 : x
  2. Step 2: Convert to fraction form
    10,620.80/14,656.80 = 5,904.96/x
  3. Step 3: Cross multiply
    10,620.80x = 14,656.80 × 5,904.96
  4. Step 4: Simplify right side
    10,620.80x = 86,547,817.73
  5. Step 5: Solve for x
    x = 86,547,817.73/10,620.80
  6. Step 6: Final answer
    x = 8,148.90

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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.