Home / 9,681.83-13,360.60-5,490.08

Finding the Fourth Proportional to 9,681.83, 13,360.60 and 5,490.08

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Solution

The fourth proportional to 9,681.83, 13,360.60 and 5,490.08 is: 7,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.83 : 13,360.60 = 5,490.08 : x
  2. Step 2: Convert to fraction form
    9,681.83/13,360.60 = 5,490.08/x
  3. Step 3: Cross multiply
    9,681.83x = 13,360.60 × 5,490.08
  4. Step 4: Simplify right side
    9,681.83x = 73,350,722.13
  5. Step 5: Solve for x
    x = 73,350,722.13/9,681.83
  6. Step 6: Final answer
    x = 7,576.12

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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.