Home / 14,605.17-20,155.14-8,317.50

Finding the Fourth Proportional to 14,605.17, 20,155.14 and 8,317.50

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Solution

The fourth proportional to 14,605.17, 20,155.14 and 8,317.50 is: 11,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.17 : 20,155.14 = 8,317.50 : x
  2. Step 2: Convert to fraction form
    14,605.17/20,155.14 = 8,317.50/x
  3. Step 3: Cross multiply
    14,605.17x = 20,155.14 × 8,317.50
  4. Step 4: Simplify right side
    14,605.17x = 167,640,376.95
  5. Step 5: Solve for x
    x = 167,640,376.95/14,605.17
  6. Step 6: Final answer
    x = 11,478.15

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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.