Home / 9,689.82-13,396.80-7,459.08

Finding the Fourth Proportional to 9,689.82, 13,396.80 and 7,459.08

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Solution

The fourth proportional to 9,689.82, 13,396.80 and 7,459.08 is: 10,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,689.82 : 13,396.80 = 7,459.08 : x
  2. Step 2: Convert to fraction form
    9,689.82/13,396.80 = 7,459.08/x
  3. Step 3: Cross multiply
    9,689.82x = 13,396.80 × 7,459.08
  4. Step 4: Simplify right side
    9,689.82x = 99,927,802.94
  5. Step 5: Solve for x
    x = 99,927,802.94/9,689.82
  6. Step 6: Final answer
    x = 10,312.66

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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.