Home / 13,310.57-18,368.71-7,342.45

Finding the Fourth Proportional to 13,310.57, 18,368.71 and 7,342.45

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Solution

The fourth proportional to 13,310.57, 18,368.71 and 7,342.45 is: 10,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.57 : 18,368.71 = 7,342.45 : x
  2. Step 2: Convert to fraction form
    13,310.57/18,368.71 = 7,342.45/x
  3. Step 3: Cross multiply
    13,310.57x = 18,368.71 × 7,342.45
  4. Step 4: Simplify right side
    13,310.57x = 134,871,270.46
  5. Step 5: Solve for x
    x = 134,871,270.46/13,310.57
  6. Step 6: Final answer
    x = 10,132.64

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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.