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Finding the Fourth Proportional to 9,056, 12,518.20 and 7,555.16

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Solution

The fourth proportional to 9,056, 12,518.20 and 7,555.16 is: 10,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,056 : 12,518.20 = 7,555.16 : x
  2. Step 2: Convert to fraction form
    9,056/12,518.20 = 7,555.16/x
  3. Step 3: Cross multiply
    9,056x = 12,518.20 × 7,555.16
  4. Step 4: Simplify right side
    9,056x = 94,577,003.91
  5. Step 5: Solve for x
    x = 94,577,003.91/9,056
  6. Step 6: Final answer
    x = 10,443.57

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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.