Home / 13,879.02-19,152.34-8,574.30

Finding the Fourth Proportional to 13,879.02, 19,152.34 and 8,574.30

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Solution

The fourth proportional to 13,879.02, 19,152.34 and 8,574.30 is: 11,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.02 : 19,152.34 = 8,574.30 : x
  2. Step 2: Convert to fraction form
    13,879.02/19,152.34 = 8,574.30/x
  3. Step 3: Cross multiply
    13,879.02x = 19,152.34 × 8,574.30
  4. Step 4: Simplify right side
    13,879.02x = 164,217,908.86
  5. Step 5: Solve for x
    x = 164,217,908.86/13,879.02
  6. Step 6: Final answer
    x = 11,832.10

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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.