Home / 9,312.81-12,862.67-7,173.15

Finding the Fourth Proportional to 9,312.81, 12,862.67 and 7,173.15

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Solution

The fourth proportional to 9,312.81, 12,862.67 and 7,173.15 is: 9,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.81 : 12,862.67 = 7,173.15 : x
  2. Step 2: Convert to fraction form
    9,312.81/12,862.67 = 7,173.15/x
  3. Step 3: Cross multiply
    9,312.81x = 12,862.67 × 7,173.15
  4. Step 4: Simplify right side
    9,312.81x = 92,265,861.31
  5. Step 5: Solve for x
    x = 92,265,861.31/9,312.81
  6. Step 6: Final answer
    x = 9,907.41

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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.