Home / 10,554.28-14,549.70-7,400.68

Finding the Fourth Proportional to 10,554.28, 14,549.70 and 7,400.68

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Solution

The fourth proportional to 10,554.28, 14,549.70 and 7,400.68 is: 10,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,554.28 : 14,549.70 = 7,400.68 : x
  2. Step 2: Convert to fraction form
    10,554.28/14,549.70 = 7,400.68/x
  3. Step 3: Cross multiply
    10,554.28x = 14,549.70 × 7,400.68
  4. Step 4: Simplify right side
    10,554.28x = 107,677,673.80
  5. Step 5: Solve for x
    x = 107,677,673.80/10,554.28
  6. Step 6: Final answer
    x = 10,202.28

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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.