Home / 15,639.22-23,445.90-7,315.14

Finding the Fourth Proportional to 15,639.22, 23,445.90 and 7,315.14

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Solution

The fourth proportional to 15,639.22, 23,445.90 and 7,315.14 is: 10,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.22 : 23,445.90 = 7,315.14 : x
  2. Step 2: Convert to fraction form
    15,639.22/23,445.90 = 7,315.14/x
  3. Step 3: Cross multiply
    15,639.22x = 23,445.90 × 7,315.14
  4. Step 4: Simplify right side
    15,639.22x = 171,510,040.93
  5. Step 5: Solve for x
    x = 171,510,040.93/15,639.22
  6. Step 6: Final answer
    x = 10,966.66

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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.