Home / 10,021.61-15,032.48-5,642.21

Finding the Fourth Proportional to 10,021.61, 15,032.48 and 5,642.21

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Solution

The fourth proportional to 10,021.61, 15,032.48 and 5,642.21 is: 8,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.61 : 15,032.48 = 5,642.21 : x
  2. Step 2: Convert to fraction form
    10,021.61/15,032.48 = 5,642.21/x
  3. Step 3: Cross multiply
    10,021.61x = 15,032.48 × 5,642.21
  4. Step 4: Simplify right side
    10,021.61x = 84,816,305.61
  5. Step 5: Solve for x
    x = 84,816,305.61/10,021.61
  6. Step 6: Final answer
    x = 8,463.35

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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.