Home / 10,801.80-14,909.40-6,824.16

Finding the Fourth Proportional to 10,801.80, 14,909.40 and 6,824.16

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Solution

The fourth proportional to 10,801.80, 14,909.40 and 6,824.16 is: 9,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,801.80 : 14,909.40 = 6,824.16 : x
  2. Step 2: Convert to fraction form
    10,801.80/14,909.40 = 6,824.16/x
  3. Step 3: Cross multiply
    10,801.80x = 14,909.40 × 6,824.16
  4. Step 4: Simplify right side
    10,801.80x = 101,744,131.10
  5. Step 5: Solve for x
    x = 101,744,131.10/10,801.80
  6. Step 6: Final answer
    x = 9,419.18

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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.