Home / 9,359.19-12,918.49-5,585.00

Finding the Fourth Proportional to 9,359.19, 12,918.49 and 5,585.00

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Solution

The fourth proportional to 9,359.19, 12,918.49 and 5,585.00 is: 7,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.19 : 12,918.49 = 5,585.00 : x
  2. Step 2: Convert to fraction form
    9,359.19/12,918.49 = 5,585.00/x
  3. Step 3: Cross multiply
    9,359.19x = 12,918.49 × 5,585.00
  4. Step 4: Simplify right side
    9,359.19x = 72,149,688.10
  5. Step 5: Solve for x
    x = 72,149,688.10/9,359.19
  6. Step 6: Final answer
    x = 7,708.97

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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.