Home / 15,331.34-21,158.01-9,362.05

Finding the Fourth Proportional to 15,331.34, 21,158.01 and 9,362.05

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Solution

The fourth proportional to 15,331.34, 21,158.01 and 9,362.05 is: 12,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331.34 : 21,158.01 = 9,362.05 : x
  2. Step 2: Convert to fraction form
    15,331.34/21,158.01 = 9,362.05/x
  3. Step 3: Cross multiply
    15,331.34x = 21,158.01 × 9,362.05
  4. Step 4: Simplify right side
    15,331.34x = 198,082,194.92
  5. Step 5: Solve for x
    x = 198,082,194.92/15,331.34
  6. Step 6: Final answer
    x = 12,920.08

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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.