Home / 10,475.17-14,457.48-10,129.05

Finding the Fourth Proportional to 10,475.17, 14,457.48 and 10,129.05

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Solution

The fourth proportional to 10,475.17, 14,457.48 and 10,129.05 is: 13,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.17 : 14,457.48 = 10,129.05 : x
  2. Step 2: Convert to fraction form
    10,475.17/14,457.48 = 10,129.05/x
  3. Step 3: Cross multiply
    10,475.17x = 14,457.48 × 10,129.05
  4. Step 4: Simplify right side
    10,475.17x = 146,440,537.79
  5. Step 5: Solve for x
    x = 146,440,537.79/10,475.17
  6. Step 6: Final answer
    x = 13,979.78

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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.