Home / 10,191.25-14,059.47-7,209.64

Finding the Fourth Proportional to 10,191.25, 14,059.47 and 7,209.64

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Solution

The fourth proportional to 10,191.25, 14,059.47 and 7,209.64 is: 9,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.25 : 14,059.47 = 7,209.64 : x
  2. Step 2: Convert to fraction form
    10,191.25/14,059.47 = 7,209.64/x
  3. Step 3: Cross multiply
    10,191.25x = 14,059.47 × 7,209.64
  4. Step 4: Simplify right side
    10,191.25x = 101,363,717.29
  5. Step 5: Solve for x
    x = 101,363,717.29/10,191.25
  6. Step 6: Final answer
    x = 9,946.15

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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.