Home / 8,868.93-12,239.21-4,890.20

Finding the Fourth Proportional to 8,868.93, 12,239.21 and 4,890.20

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Solution

The fourth proportional to 8,868.93, 12,239.21 and 4,890.20 is: 6,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.93 : 12,239.21 = 4,890.20 : x
  2. Step 2: Convert to fraction form
    8,868.93/12,239.21 = 4,890.20/x
  3. Step 3: Cross multiply
    8,868.93x = 12,239.21 × 4,890.20
  4. Step 4: Simplify right side
    8,868.93x = 59,852,184.74
  5. Step 5: Solve for x
    x = 59,852,184.74/8,868.93
  6. Step 6: Final answer
    x = 6,748.52

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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.