Home / 10,140.23-15,210.89-3,215.27

Finding the Fourth Proportional to 10,140.23, 15,210.89 and 3,215.27

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Solution

The fourth proportional to 10,140.23, 15,210.89 and 3,215.27 is: 4,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.23 : 15,210.89 = 3,215.27 : x
  2. Step 2: Convert to fraction form
    10,140.23/15,210.89 = 3,215.27/x
  3. Step 3: Cross multiply
    10,140.23x = 15,210.89 × 3,215.27
  4. Step 4: Simplify right side
    10,140.23x = 48,907,118.29
  5. Step 5: Solve for x
    x = 48,907,118.29/10,140.23
  6. Step 6: Final answer
    x = 4,823.08

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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.