Home / 10,615.12-15,919.95-4,376.91

Finding the Fourth Proportional to 10,615.12, 15,919.95 and 4,376.91

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Solution

The fourth proportional to 10,615.12, 15,919.95 and 4,376.91 is: 6,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.12 : 15,919.95 = 4,376.91 : x
  2. Step 2: Convert to fraction form
    10,615.12/15,919.95 = 4,376.91/x
  3. Step 3: Cross multiply
    10,615.12x = 15,919.95 × 4,376.91
  4. Step 4: Simplify right side
    10,615.12x = 69,680,108.75
  5. Step 5: Solve for x
    x = 69,680,108.75/10,615.12
  6. Step 6: Final answer
    x = 6,564.23

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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.