Home / 13,285.76-18,333.95-7,317.41

Finding the Fourth Proportional to 13,285.76, 18,333.95 and 7,317.41

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Solution

The fourth proportional to 13,285.76, 18,333.95 and 7,317.41 is: 10,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.76 : 18,333.95 = 7,317.41 : x
  2. Step 2: Convert to fraction form
    13,285.76/18,333.95 = 7,317.41/x
  3. Step 3: Cross multiply
    13,285.76x = 18,333.95 × 7,317.41
  4. Step 4: Simplify right side
    13,285.76x = 134,156,900.81
  5. Step 5: Solve for x
    x = 134,156,900.81/13,285.76
  6. Step 6: Final answer
    x = 10,097.80

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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.