Home / 15,373.32-21,215.67-9,000.54

Finding the Fourth Proportional to 15,373.32, 21,215.67 and 9,000.54

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Solution

The fourth proportional to 15,373.32, 21,215.67 and 9,000.54 is: 12,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.32 : 21,215.67 = 9,000.54 : x
  2. Step 2: Convert to fraction form
    15,373.32/21,215.67 = 9,000.54/x
  3. Step 3: Cross multiply
    15,373.32x = 21,215.67 × 9,000.54
  4. Step 4: Simplify right side
    15,373.32x = 190,952,486.46
  5. Step 5: Solve for x
    x = 190,952,486.46/15,373.32
  6. Step 6: Final answer
    x = 12,421.03

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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.