Home / 12,356.02-17,051.10-6,690.72

Finding the Fourth Proportional to 12,356.02, 17,051.10 and 6,690.72

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Solution

The fourth proportional to 12,356.02, 17,051.10 and 6,690.72 is: 9,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.02 : 17,051.10 = 6,690.72 : x
  2. Step 2: Convert to fraction form
    12,356.02/17,051.10 = 6,690.72/x
  3. Step 3: Cross multiply
    12,356.02x = 17,051.10 × 6,690.72
  4. Step 4: Simplify right side
    12,356.02x = 114,084,135.79
  5. Step 5: Solve for x
    x = 114,084,135.79/12,356.02
  6. Step 6: Final answer
    x = 9,233.08

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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.