Home / 12,705.04-17,527.40-7,666.40

Finding the Fourth Proportional to 12,705.04, 17,527.40 and 7,666.40

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Solution

The fourth proportional to 12,705.04, 17,527.40 and 7,666.40 is: 10,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.04 : 17,527.40 = 7,666.40 : x
  2. Step 2: Convert to fraction form
    12,705.04/17,527.40 = 7,666.40/x
  3. Step 3: Cross multiply
    12,705.04x = 17,527.40 × 7,666.40
  4. Step 4: Simplify right side
    12,705.04x = 134,372,059.36
  5. Step 5: Solve for x
    x = 134,372,059.36/12,705.04
  6. Step 6: Final answer
    x = 10,576.28

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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.