Home / 10,210.31-15,321.99-6,515.18

Finding the Fourth Proportional to 10,210.31, 15,321.99 and 6,515.18

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Solution

The fourth proportional to 10,210.31, 15,321.99 and 6,515.18 is: 9,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.31 : 15,321.99 = 6,515.18 : x
  2. Step 2: Convert to fraction form
    10,210.31/15,321.99 = 6,515.18/x
  3. Step 3: Cross multiply
    10,210.31x = 15,321.99 × 6,515.18
  4. Step 4: Simplify right side
    10,210.31x = 99,825,522.81
  5. Step 5: Solve for x
    x = 99,825,522.81/10,210.31
  6. Step 6: Final answer
    x = 9,776.93

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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.