Home / 15,669.51-21,624.22-9,616.72

Finding the Fourth Proportional to 15,669.51, 21,624.22 and 9,616.72

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Solution

The fourth proportional to 15,669.51, 21,624.22 and 9,616.72 is: 13,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.51 : 21,624.22 = 9,616.72 : x
  2. Step 2: Convert to fraction form
    15,669.51/21,624.22 = 9,616.72/x
  3. Step 3: Cross multiply
    15,669.51x = 21,624.22 × 9,616.72
  4. Step 4: Simplify right side
    15,669.51x = 207,954,068.96
  5. Step 5: Solve for x
    x = 207,954,068.96/15,669.51
  6. Step 6: Final answer
    x = 13,271.26

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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.