Home / 10,371.40-15,557.06-2,580.21

Finding the Fourth Proportional to 10,371.40, 15,557.06 and 2,580.21

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Solution

The fourth proportional to 10,371.40, 15,557.06 and 2,580.21 is: 3,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.40 : 15,557.06 = 2,580.21 : x
  2. Step 2: Convert to fraction form
    10,371.40/15,557.06 = 2,580.21/x
  3. Step 3: Cross multiply
    10,371.40x = 15,557.06 × 2,580.21
  4. Step 4: Simplify right side
    10,371.40x = 40,140,488.23
  5. Step 5: Solve for x
    x = 40,140,488.23/10,371.40
  6. Step 6: Final answer
    x = 3,870.31

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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.