Home / 10,371.37-15,547.70-7,040.75

Finding the Fourth Proportional to 10,371.37, 15,547.70 and 7,040.75

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Solution

The fourth proportional to 10,371.37, 15,547.70 and 7,040.75 is: 10,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.37 : 15,547.70 = 7,040.75 : x
  2. Step 2: Convert to fraction form
    10,371.37/15,547.70 = 7,040.75/x
  3. Step 3: Cross multiply
    10,371.37x = 15,547.70 × 7,040.75
  4. Step 4: Simplify right side
    10,371.37x = 109,467,391.04
  5. Step 5: Solve for x
    x = 109,467,391.04/10,371.37
  6. Step 6: Final answer
    x = 10,554.77

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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.