Home / 9,813.81-13,543.20-5,337.56

Finding the Fourth Proportional to 9,813.81, 13,543.20 and 5,337.56

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Solution

The fourth proportional to 9,813.81, 13,543.20 and 5,337.56 is: 7,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.81 : 13,543.20 = 5,337.56 : x
  2. Step 2: Convert to fraction form
    9,813.81/13,543.20 = 5,337.56/x
  3. Step 3: Cross multiply
    9,813.81x = 13,543.20 × 5,337.56
  4. Step 4: Simplify right side
    9,813.81x = 72,287,642.59
  5. Step 5: Solve for x
    x = 72,287,642.59/9,813.81
  6. Step 6: Final answer
    x = 7,365.91

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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.