Home / 11,152.94-15,391.08-6,307.40

Finding the Fourth Proportional to 11,152.94, 15,391.08 and 6,307.40

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Solution

The fourth proportional to 11,152.94, 15,391.08 and 6,307.40 is: 8,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.94 : 15,391.08 = 6,307.40 : x
  2. Step 2: Convert to fraction form
    11,152.94/15,391.08 = 6,307.40/x
  3. Step 3: Cross multiply
    11,152.94x = 15,391.08 × 6,307.40
  4. Step 4: Simplify right side
    11,152.94x = 97,077,697.99
  5. Step 5: Solve for x
    x = 97,077,697.99/11,152.94
  6. Step 6: Final answer
    x = 8,704.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.