Home / 15,313.98-21,135.58-9,349.11

Finding the Fourth Proportional to 15,313.98, 21,135.58 and 9,349.11

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Solution

The fourth proportional to 15,313.98, 21,135.58 and 9,349.11 is: 12,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.98 : 21,135.58 = 9,349.11 : x
  2. Step 2: Convert to fraction form
    15,313.98/21,135.58 = 9,349.11/x
  3. Step 3: Cross multiply
    15,313.98x = 21,135.58 × 9,349.11
  4. Step 4: Simplify right side
    15,313.98x = 197,598,838.96
  5. Step 5: Solve for x
    x = 197,598,838.96/15,313.98
  6. Step 6: Final answer
    x = 12,903.17

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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.