Home / 10,302.39-14,209.63-7,116.66

Finding the Fourth Proportional to 10,302.39, 14,209.63 and 7,116.66

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Solution

The fourth proportional to 10,302.39, 14,209.63 and 7,116.66 is: 9,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,302.39 : 14,209.63 = 7,116.66 : x
  2. Step 2: Convert to fraction form
    10,302.39/14,209.63 = 7,116.66/x
  3. Step 3: Cross multiply
    10,302.39x = 14,209.63 × 7,116.66
  4. Step 4: Simplify right side
    10,302.39x = 101,125,087.64
  5. Step 5: Solve for x
    x = 101,125,087.64/10,302.39
  6. Step 6: Final answer
    x = 9,815.69

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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.