Home / 10,909.90-15,055.30-6,193.88

Finding the Fourth Proportional to 10,909.90, 15,055.30 and 6,193.88

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Solution

The fourth proportional to 10,909.90, 15,055.30 and 6,193.88 is: 8,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.90 : 15,055.30 = 6,193.88 : x
  2. Step 2: Convert to fraction form
    10,909.90/15,055.30 = 6,193.88/x
  3. Step 3: Cross multiply
    10,909.90x = 15,055.30 × 6,193.88
  4. Step 4: Simplify right side
    10,909.90x = 93,250,721.56
  5. Step 5: Solve for x
    x = 93,250,721.56/10,909.90
  6. Step 6: Final answer
    x = 8,547.35

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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.