Home / 19,364.40-29,010.15-9,972.45

Finding the Fourth Proportional to 19,364.40, 29,010.15 and 9,972.45

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Solution

The fourth proportional to 19,364.40, 29,010.15 and 9,972.45 is: 14,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.40 : 29,010.15 = 9,972.45 : x
  2. Step 2: Convert to fraction form
    19,364.40/29,010.15 = 9,972.45/x
  3. Step 3: Cross multiply
    19,364.40x = 29,010.15 × 9,972.45
  4. Step 4: Simplify right side
    19,364.40x = 289,302,270.37
  5. Step 5: Solve for x
    x = 289,302,270.37/19,364.40
  6. Step 6: Final answer
    x = 14,939.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.