Home / 10,654.36-14,700.65-7,115.06

Finding the Fourth Proportional to 10,654.36, 14,700.65 and 7,115.06

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Solution

The fourth proportional to 10,654.36, 14,700.65 and 7,115.06 is: 9,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.36 : 14,700.65 = 7,115.06 : x
  2. Step 2: Convert to fraction form
    10,654.36/14,700.65 = 7,115.06/x
  3. Step 3: Cross multiply
    10,654.36x = 14,700.65 × 7,115.06
  4. Step 4: Simplify right side
    10,654.36x = 104,596,007.97
  5. Step 5: Solve for x
    x = 104,596,007.97/10,654.36
  6. Step 6: Final answer
    x = 9,817.20

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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.