Home / 18,430.02-25,442.76-10,878.66

Finding the Fourth Proportional to 18,430.02, 25,442.76 and 10,878.66

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Solution

The fourth proportional to 18,430.02, 25,442.76 and 10,878.66 is: 15,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.02 : 25,442.76 = 10,878.66 : x
  2. Step 2: Convert to fraction form
    18,430.02/25,442.76 = 10,878.66/x
  3. Step 3: Cross multiply
    18,430.02x = 25,442.76 × 10,878.66
  4. Step 4: Simplify right side
    18,430.02x = 276,783,135.50
  5. Step 5: Solve for x
    x = 276,783,135.50/18,430.02
  6. Step 6: Final answer
    x = 15,018.06

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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.