Home / 13,313.85-18,373.18-7,345.52

Finding the Fourth Proportional to 13,313.85, 18,373.18 and 7,345.52

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Solution

The fourth proportional to 13,313.85, 18,373.18 and 7,345.52 is: 10,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.85 : 18,373.18 = 7,345.52 : x
  2. Step 2: Convert to fraction form
    13,313.85/18,373.18 = 7,345.52/x
  3. Step 3: Cross multiply
    13,313.85x = 18,373.18 × 7,345.52
  4. Step 4: Simplify right side
    13,313.85x = 134,960,561.15
  5. Step 5: Solve for x
    x = 134,960,561.15/13,313.85
  6. Step 6: Final answer
    x = 10,136.85

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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.