Home / 9,816.96-13,547.70-5,340.90

Finding the Fourth Proportional to 9,816.96, 13,547.70 and 5,340.90

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Solution

The fourth proportional to 9,816.96, 13,547.70 and 5,340.90 is: 7,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.96 : 13,547.70 = 5,340.90 : x
  2. Step 2: Convert to fraction form
    9,816.96/13,547.70 = 5,340.90/x
  3. Step 3: Cross multiply
    9,816.96x = 13,547.70 × 5,340.90
  4. Step 4: Simplify right side
    9,816.96x = 72,356,910.93
  5. Step 5: Solve for x
    x = 72,356,910.93/9,816.96
  6. Step 6: Final answer
    x = 7,370.60

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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.