Home / 15,266.72-21,068.29-9,958.49

Finding the Fourth Proportional to 15,266.72, 21,068.29 and 9,958.49

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Solution

The fourth proportional to 15,266.72, 21,068.29 and 9,958.49 is: 13,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.72 : 21,068.29 = 9,958.49 : x
  2. Step 2: Convert to fraction form
    15,266.72/21,068.29 = 9,958.49/x
  3. Step 3: Cross multiply
    15,266.72x = 21,068.29 × 9,958.49
  4. Step 4: Simplify right side
    15,266.72x = 209,808,341.39
  5. Step 5: Solve for x
    x = 209,808,341.39/15,266.72
  6. Step 6: Final answer
    x = 13,742.85

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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.