Home / 13,222.34-19,832.69-5,430.95

Finding the Fourth Proportional to 13,222.34, 19,832.69 and 5,430.95

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Solution

The fourth proportional to 13,222.34, 19,832.69 and 5,430.95 is: 8,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.34 : 19,832.69 = 5,430.95 : x
  2. Step 2: Convert to fraction form
    13,222.34/19,832.69 = 5,430.95/x
  3. Step 3: Cross multiply
    13,222.34x = 19,832.69 × 5,430.95
  4. Step 4: Simplify right side
    13,222.34x = 107,710,262.17
  5. Step 5: Solve for x
    x = 107,710,262.17/13,222.34
  6. Step 6: Final answer
    x = 8,146.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.