Home / 12,312.04-16,975.77-8,538.43

Finding the Fourth Proportional to 12,312.04, 16,975.77 and 8,538.43

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Solution

The fourth proportional to 12,312.04, 16,975.77 and 8,538.43 is: 11,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.04 : 16,975.77 = 8,538.43 : x
  2. Step 2: Convert to fraction form
    12,312.04/16,975.77 = 8,538.43/x
  3. Step 3: Cross multiply
    12,312.04x = 16,975.77 × 8,538.43
  4. Step 4: Simplify right side
    12,312.04x = 144,946,423.84
  5. Step 5: Solve for x
    x = 144,946,423.84/12,312.04
  6. Step 6: Final answer
    x = 11,772.74

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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.