Home / 15,682.02-21,641.10-8,512.08

Finding the Fourth Proportional to 15,682.02, 21,641.10 and 8,512.08

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Solution

The fourth proportional to 15,682.02, 21,641.10 and 8,512.08 is: 11,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.02 : 21,641.10 = 8,512.08 : x
  2. Step 2: Convert to fraction form
    15,682.02/21,641.10 = 8,512.08/x
  3. Step 3: Cross multiply
    15,682.02x = 21,641.10 × 8,512.08
  4. Step 4: Simplify right side
    15,682.02x = 184,210,746.22
  5. Step 5: Solve for x
    x = 184,210,746.22/15,682.02
  6. Step 6: Final answer
    x = 11,746.62

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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.