Home / 10,242.40-14,134.38-5,705.08

Finding the Fourth Proportional to 10,242.40, 14,134.38 and 5,705.08

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Solution

The fourth proportional to 10,242.40, 14,134.38 and 5,705.08 is: 7,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.40 : 14,134.38 = 5,705.08 : x
  2. Step 2: Convert to fraction form
    10,242.40/14,134.38 = 5,705.08/x
  3. Step 3: Cross multiply
    10,242.40x = 14,134.38 × 5,705.08
  4. Step 4: Simplify right side
    10,242.40x = 80,637,768.65
  5. Step 5: Solve for x
    x = 80,637,768.65/10,242.40
  6. Step 6: Final answer
    x = 7,872.94

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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.