Home / 15,495.96-21,377.88-9,207.12

Finding the Fourth Proportional to 15,495.96, 21,377.88 and 9,207.12

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Solution

The fourth proportional to 15,495.96, 21,377.88 and 9,207.12 is: 12,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,495.96 : 21,377.88 = 9,207.12 : x
  2. Step 2: Convert to fraction form
    15,495.96/21,377.88 = 9,207.12/x
  3. Step 3: Cross multiply
    15,495.96x = 21,377.88 × 9,207.12
  4. Step 4: Simplify right side
    15,495.96x = 196,828,706.51
  5. Step 5: Solve for x
    x = 196,828,706.51/15,495.96
  6. Step 6: Final answer
    x = 12,701.94

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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.