Home / 12,369.16-17,069.70-7,656.04

Finding the Fourth Proportional to 12,369.16, 17,069.70 and 7,656.04

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Solution

The fourth proportional to 12,369.16, 17,069.70 and 7,656.04 is: 10,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.16 : 17,069.70 = 7,656.04 : x
  2. Step 2: Convert to fraction form
    12,369.16/17,069.70 = 7,656.04/x
  3. Step 3: Cross multiply
    12,369.16x = 17,069.70 × 7,656.04
  4. Step 4: Simplify right side
    12,369.16x = 130,686,305.99
  5. Step 5: Solve for x
    x = 130,686,305.99/12,369.16
  6. Step 6: Final answer
    x = 10,565.50

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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.