Home / 8,390.37-12,531.90-7,598.58

Finding the Fourth Proportional to 8,390.37, 12,531.90 and 7,598.58

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Solution

The fourth proportional to 8,390.37, 12,531.90 and 7,598.58 is: 11,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.37 : 12,531.90 = 7,598.58 : x
  2. Step 2: Convert to fraction form
    8,390.37/12,531.90 = 7,598.58/x
  3. Step 3: Cross multiply
    8,390.37x = 12,531.90 × 7,598.58
  4. Step 4: Simplify right side
    8,390.37x = 95,224,644.70
  5. Step 5: Solve for x
    x = 95,224,644.70/8,390.37
  6. Step 6: Final answer
    x = 11,349.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.