Home / 8,710.24-12,020.40-4,985.44

Finding the Fourth Proportional to 8,710.24, 12,020.40 and 4,985.44

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Solution

The fourth proportional to 8,710.24, 12,020.40 and 4,985.44 is: 6,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.24 : 12,020.40 = 4,985.44 : x
  2. Step 2: Convert to fraction form
    8,710.24/12,020.40 = 4,985.44/x
  3. Step 3: Cross multiply
    8,710.24x = 12,020.40 × 4,985.44
  4. Step 4: Simplify right side
    8,710.24x = 59,926,982.98
  5. Step 5: Solve for x
    x = 59,926,982.98/8,710.24
  6. Step 6: Final answer
    x = 6,880.06

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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.