Home / 8,999.10-12,417.50-5,222.58

Finding the Fourth Proportional to 8,999.10, 12,417.50 and 5,222.58

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Solution

The fourth proportional to 8,999.10, 12,417.50 and 5,222.58 is: 7,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.10 : 12,417.50 = 5,222.58 : x
  2. Step 2: Convert to fraction form
    8,999.10/12,417.50 = 5,222.58/x
  3. Step 3: Cross multiply
    8,999.10x = 12,417.50 × 5,222.58
  4. Step 4: Simplify right side
    8,999.10x = 64,851,353.64
  5. Step 5: Solve for x
    x = 64,851,353.64/8,999.10
  6. Step 6: Final answer
    x = 7,206.43

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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.