Home / 13,316.83-18,369.47-8,535.07

Finding the Fourth Proportional to 13,316.83, 18,369.47 and 8,535.07

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Solution

The fourth proportional to 13,316.83, 18,369.47 and 8,535.07 is: 11,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.83 : 18,369.47 = 8,535.07 : x
  2. Step 2: Convert to fraction form
    13,316.83/18,369.47 = 8,535.07/x
  3. Step 3: Cross multiply
    13,316.83x = 18,369.47 × 8,535.07
  4. Step 4: Simplify right side
    13,316.83x = 156,784,756.61
  5. Step 5: Solve for x
    x = 156,784,756.61/13,316.83
  6. Step 6: Final answer
    x = 11,773.43

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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.