Home / 12,549.57-18,830.10-5,435.98

Finding the Fourth Proportional to 12,549.57, 18,830.10 and 5,435.98

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Solution

The fourth proportional to 12,549.57, 18,830.10 and 5,435.98 is: 8,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.57 : 18,830.10 = 5,435.98 : x
  2. Step 2: Convert to fraction form
    12,549.57/18,830.10 = 5,435.98/x
  3. Step 3: Cross multiply
    12,549.57x = 18,830.10 × 5,435.98
  4. Step 4: Simplify right side
    12,549.57x = 102,360,085.64
  5. Step 5: Solve for x
    x = 102,360,085.64/12,549.57
  6. Step 6: Final answer
    x = 8,156.46

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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.