Home / 12,266.04-18,405.54-8,985

Finding the Fourth Proportional to 12,266.04, 18,405.54 and 8,985

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Solution

The fourth proportional to 12,266.04, 18,405.54 and 8,985 is: 13,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.04 : 18,405.54 = 8,985 : x
  2. Step 2: Convert to fraction form
    12,266.04/18,405.54 = 8,985/x
  3. Step 3: Cross multiply
    12,266.04x = 18,405.54 × 8,985
  4. Step 4: Simplify right side
    12,266.04x = 165,373,776.90
  5. Step 5: Solve for x
    x = 165,373,776.90/12,266.04
  6. Step 6: Final answer
    x = 13,482.25

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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.