Home / 8,868.20-13,300.91-5,312.30

Finding the Fourth Proportional to 8,868.20, 13,300.91 and 5,312.30

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Solution

The fourth proportional to 8,868.20, 13,300.91 and 5,312.30 is: 7,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.20 : 13,300.91 = 5,312.30 : x
  2. Step 2: Convert to fraction form
    8,868.20/13,300.91 = 5,312.30/x
  3. Step 3: Cross multiply
    8,868.20x = 13,300.91 × 5,312.30
  4. Step 4: Simplify right side
    8,868.20x = 70,658,425.87
  5. Step 5: Solve for x
    x = 70,658,425.87/8,868.20
  6. Step 6: Final answer
    x = 7,967.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.