Home / 13,523.32-18,661.20-7,473.28

Finding the Fourth Proportional to 13,523.32, 18,661.20 and 7,473.28

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Solution

The fourth proportional to 13,523.32, 18,661.20 and 7,473.28 is: 10,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.32 : 18,661.20 = 7,473.28 : x
  2. Step 2: Convert to fraction form
    13,523.32/18,661.20 = 7,473.28/x
  3. Step 3: Cross multiply
    13,523.32x = 18,661.20 × 7,473.28
  4. Step 4: Simplify right side
    13,523.32x = 139,460,372.74
  5. Step 5: Solve for x
    x = 139,460,372.74/13,523.32
  6. Step 6: Final answer
    x = 10,312.58

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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.