Home / 11,948.40-16,488.72-6,643.17

Finding the Fourth Proportional to 11,948.40, 16,488.72 and 6,643.17

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Solution

The fourth proportional to 11,948.40, 16,488.72 and 6,643.17 is: 9,167.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.40 : 16,488.72 = 6,643.17 : x
  2. Step 2: Convert to fraction form
    11,948.40/16,488.72 = 6,643.17/x
  3. Step 3: Cross multiply
    11,948.40x = 16,488.72 × 6,643.17
  4. Step 4: Simplify right side
    11,948.40x = 109,537,370.04
  5. Step 5: Solve for x
    x = 109,537,370.04/11,948.40
  6. Step 6: Final answer
    x = 9,167.53

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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.