Home / 12,543.61-17,310.04-6,878.34

Finding the Fourth Proportional to 12,543.61, 17,310.04 and 6,878.34

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Solution

The fourth proportional to 12,543.61, 17,310.04 and 6,878.34 is: 9,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.61 : 17,310.04 = 6,878.34 : x
  2. Step 2: Convert to fraction form
    12,543.61/17,310.04 = 6,878.34/x
  3. Step 3: Cross multiply
    12,543.61x = 17,310.04 × 6,878.34
  4. Step 4: Simplify right side
    12,543.61x = 119,064,340.53
  5. Step 5: Solve for x
    x = 119,064,340.53/12,543.61
  6. Step 6: Final answer
    x = 9,492.03

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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.