Home / 12,018.02-18,038.55-6,828.26

Finding the Fourth Proportional to 12,018.02, 18,038.55 and 6,828.26

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Solution

The fourth proportional to 12,018.02, 18,038.55 and 6,828.26 is: 10,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.02 : 18,038.55 = 6,828.26 : x
  2. Step 2: Convert to fraction form
    12,018.02/18,038.55 = 6,828.26/x
  3. Step 3: Cross multiply
    12,018.02x = 18,038.55 × 6,828.26
  4. Step 4: Simplify right side
    12,018.02x = 123,171,909.42
  5. Step 5: Solve for x
    x = 123,171,909.42/12,018.02
  6. Step 6: Final answer
    x = 10,248.94

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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.