Home / 19,430.06-26,823.16-12,725.96

Finding the Fourth Proportional to 19,430.06, 26,823.16 and 12,725.96

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Solution

The fourth proportional to 19,430.06, 26,823.16 and 12,725.96 is: 17,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.06 : 26,823.16 = 12,725.96 : x
  2. Step 2: Convert to fraction form
    19,430.06/26,823.16 = 12,725.96/x
  3. Step 3: Cross multiply
    19,430.06x = 26,823.16 × 12,725.96
  4. Step 4: Simplify right side
    19,430.06x = 341,350,461.23
  5. Step 5: Solve for x
    x = 341,350,461.23/19,430.06
  6. Step 6: Final answer
    x = 17,568.16

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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.