Home / 13,461.24-18,563.13-8,985.18

Finding the Fourth Proportional to 13,461.24, 18,563.13 and 8,985.18

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Solution

The fourth proportional to 13,461.24, 18,563.13 and 8,985.18 is: 12,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.24 : 18,563.13 = 8,985.18 : x
  2. Step 2: Convert to fraction form
    13,461.24/18,563.13 = 8,985.18/x
  3. Step 3: Cross multiply
    13,461.24x = 18,563.13 × 8,985.18
  4. Step 4: Simplify right side
    13,461.24x = 166,793,064.41
  5. Step 5: Solve for x
    x = 166,793,064.41/13,461.24
  6. Step 6: Final answer
    x = 12,390.62

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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.