Home / 15,144.48-20,901.06-9,176.40

Finding the Fourth Proportional to 15,144.48, 20,901.06 and 9,176.40

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Solution

The fourth proportional to 15,144.48, 20,901.06 and 9,176.40 is: 12,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.48 : 20,901.06 = 9,176.40 : x
  2. Step 2: Convert to fraction form
    15,144.48/20,901.06 = 9,176.40/x
  3. Step 3: Cross multiply
    15,144.48x = 20,901.06 × 9,176.40
  4. Step 4: Simplify right side
    15,144.48x = 191,796,486.98
  5. Step 5: Solve for x
    x = 191,796,486.98/15,144.48
  6. Step 6: Final answer
    x = 12,664.45

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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.