Home / 12,328.45-18,487.94-9,701.12

Finding the Fourth Proportional to 12,328.45, 18,487.94 and 9,701.12

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Solution

The fourth proportional to 12,328.45, 18,487.94 and 9,701.12 is: 14,547.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.45 : 18,487.94 = 9,701.12 : x
  2. Step 2: Convert to fraction form
    12,328.45/18,487.94 = 9,701.12/x
  3. Step 3: Cross multiply
    12,328.45x = 18,487.94 × 9,701.12
  4. Step 4: Simplify right side
    12,328.45x = 179,353,722.21
  5. Step 5: Solve for x
    x = 179,353,722.21/12,328.45
  6. Step 6: Final answer
    x = 14,547.96

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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.