Home / 15,446.79-21,316.38-8,373.06

Finding the Fourth Proportional to 15,446.79, 21,316.38 and 8,373.06

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Solution

The fourth proportional to 15,446.79, 21,316.38 and 8,373.06 is: 11,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.79 : 21,316.38 = 8,373.06 : x
  2. Step 2: Convert to fraction form
    15,446.79/21,316.38 = 8,373.06/x
  3. Step 3: Cross multiply
    15,446.79x = 21,316.38 × 8,373.06
  4. Step 4: Simplify right side
    15,446.79x = 178,483,328.72
  5. Step 5: Solve for x
    x = 178,483,328.72/15,446.79
  6. Step 6: Final answer
    x = 11,554.72

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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.