Home / 12,396.17-18,547.77-7,380.20

Finding the Fourth Proportional to 12,396.17, 18,547.77 and 7,380.20

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Solution

The fourth proportional to 12,396.17, 18,547.77 and 7,380.20 is: 11,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.17 : 18,547.77 = 7,380.20 : x
  2. Step 2: Convert to fraction form
    12,396.17/18,547.77 = 7,380.20/x
  3. Step 3: Cross multiply
    12,396.17x = 18,547.77 × 7,380.20
  4. Step 4: Simplify right side
    12,396.17x = 136,886,159.42
  5. Step 5: Solve for x
    x = 136,886,159.42/12,396.17
  6. Step 6: Final answer
    x = 11,042.62

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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.