Home / 16,217.36-22,389.48-10,638.08

Finding the Fourth Proportional to 16,217.36, 22,389.48 and 10,638.08

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Solution

The fourth proportional to 16,217.36, 22,389.48 and 10,638.08 is: 14,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,217.36 : 22,389.48 = 10,638.08 : x
  2. Step 2: Convert to fraction form
    16,217.36/22,389.48 = 10,638.08/x
  3. Step 3: Cross multiply
    16,217.36x = 22,389.48 × 10,638.08
  4. Step 4: Simplify right side
    16,217.36x = 238,181,079.40
  5. Step 5: Solve for x
    x = 238,181,079.40/16,217.36
  6. Step 6: Final answer
    x = 14,686.80

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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.