Home / 9,264.30-12,784.19-5,285.78

Finding the Fourth Proportional to 9,264.30, 12,784.19 and 5,285.78

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Solution

The fourth proportional to 9,264.30, 12,784.19 and 5,285.78 is: 7,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,264.30 : 12,784.19 = 5,285.78 : x
  2. Step 2: Convert to fraction form
    9,264.30/12,784.19 = 5,285.78/x
  3. Step 3: Cross multiply
    9,264.30x = 12,784.19 × 5,285.78
  4. Step 4: Simplify right side
    9,264.30x = 67,574,415.82
  5. Step 5: Solve for x
    x = 67,574,415.82/9,264.30
  6. Step 6: Final answer
    x = 7,294.07

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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.