Home / 13,117.16-18,099.61-7,373.49

Finding the Fourth Proportional to 13,117.16, 18,099.61 and 7,373.49

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Solution

The fourth proportional to 13,117.16, 18,099.61 and 7,373.49 is: 10,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.16 : 18,099.61 = 7,373.49 : x
  2. Step 2: Convert to fraction form
    13,117.16/18,099.61 = 7,373.49/x
  3. Step 3: Cross multiply
    13,117.16x = 18,099.61 × 7,373.49
  4. Step 4: Simplify right side
    13,117.16x = 133,457,293.34
  5. Step 5: Solve for x
    x = 133,457,293.34/13,117.16
  6. Step 6: Final answer
    x = 10,174.25

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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.