Home / 15,315.16-22,954.28-7,915.64

Finding the Fourth Proportional to 15,315.16, 22,954.28 and 7,915.64

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Solution

The fourth proportional to 15,315.16, 22,954.28 and 7,915.64 is: 11,863.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.16 : 22,954.28 = 7,915.64 : x
  2. Step 2: Convert to fraction form
    15,315.16/22,954.28 = 7,915.64/x
  3. Step 3: Cross multiply
    15,315.16x = 22,954.28 × 7,915.64
  4. Step 4: Simplify right side
    15,315.16x = 181,697,816.94
  5. Step 5: Solve for x
    x = 181,697,816.94/15,315.16
  6. Step 6: Final answer
    x = 11,863.92

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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.