Home / 12,416.48-17,117.04-8,878.40

Finding the Fourth Proportional to 12,416.48, 17,117.04 and 8,878.40

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Solution

The fourth proportional to 12,416.48, 17,117.04 and 8,878.40 is: 12,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.48 : 17,117.04 = 8,878.40 : x
  2. Step 2: Convert to fraction form
    12,416.48/17,117.04 = 8,878.40/x
  3. Step 3: Cross multiply
    12,416.48x = 17,117.04 × 8,878.40
  4. Step 4: Simplify right side
    12,416.48x = 151,971,927.94
  5. Step 5: Solve for x
    x = 151,971,927.94/12,416.48
  6. Step 6: Final answer
    x = 12,239.53

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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.