Home / 15,703.62-21,661.38-9,325.89

Finding the Fourth Proportional to 15,703.62, 21,661.38 and 9,325.89

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Solution

The fourth proportional to 15,703.62, 21,661.38 and 9,325.89 is: 12,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.62 : 21,661.38 = 9,325.89 : x
  2. Step 2: Convert to fraction form
    15,703.62/21,661.38 = 9,325.89/x
  3. Step 3: Cross multiply
    15,703.62x = 21,661.38 × 9,325.89
  4. Step 4: Simplify right side
    15,703.62x = 202,011,647.13
  5. Step 5: Solve for x
    x = 202,011,647.13/15,703.62
  6. Step 6: Final answer
    x = 12,864.02

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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.