Home / 13,538.32-20,312.09-7,298.93

Finding the Fourth Proportional to 13,538.32, 20,312.09 and 7,298.93

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Solution

The fourth proportional to 13,538.32, 20,312.09 and 7,298.93 is: 10,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.32 : 20,312.09 = 7,298.93 : x
  2. Step 2: Convert to fraction form
    13,538.32/20,312.09 = 7,298.93/x
  3. Step 3: Cross multiply
    13,538.32x = 20,312.09 × 7,298.93
  4. Step 4: Simplify right side
    13,538.32x = 148,256,523.06
  5. Step 5: Solve for x
    x = 148,256,523.06/13,538.32
  6. Step 6: Final answer
    x = 10,950.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.