Home / 8,868.81-12,239.04-4,890.07

Finding the Fourth Proportional to 8,868.81, 12,239.04 and 4,890.07

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Solution

The fourth proportional to 8,868.81, 12,239.04 and 4,890.07 is: 6,748.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.81 : 12,239.04 = 4,890.07 : x
  2. Step 2: Convert to fraction form
    8,868.81/12,239.04 = 4,890.07/x
  3. Step 3: Cross multiply
    8,868.81x = 12,239.04 × 4,890.07
  4. Step 4: Simplify right side
    8,868.81x = 59,849,762.33
  5. Step 5: Solve for x
    x = 59,849,762.33/8,868.81
  6. Step 6: Final answer
    x = 6,748.34

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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.