Home / 10,507.23-14,518.38-8,400.12

Finding the Fourth Proportional to 10,507.23, 14,518.38 and 8,400.12

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Solution

The fourth proportional to 10,507.23, 14,518.38 and 8,400.12 is: 11,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.23 : 14,518.38 = 8,400.12 : x
  2. Step 2: Convert to fraction form
    10,507.23/14,518.38 = 8,400.12/x
  3. Step 3: Cross multiply
    10,507.23x = 14,518.38 × 8,400.12
  4. Step 4: Simplify right side
    10,507.23x = 121,956,134.21
  5. Step 5: Solve for x
    x = 121,956,134.21/10,507.23
  6. Step 6: Final answer
    x = 11,606.88

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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.