Home / 13,938.47-19,234.77-7,565.08

Finding the Fourth Proportional to 13,938.47, 19,234.77 and 7,565.08

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Solution

The fourth proportional to 13,938.47, 19,234.77 and 7,565.08 is: 10,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.47 : 19,234.77 = 7,565.08 : x
  2. Step 2: Convert to fraction form
    13,938.47/19,234.77 = 7,565.08/x
  3. Step 3: Cross multiply
    13,938.47x = 19,234.77 × 7,565.08
  4. Step 4: Simplify right side
    13,938.47x = 145,512,439.83
  5. Step 5: Solve for x
    x = 145,512,439.83/13,938.47
  6. Step 6: Final answer
    x = 10,439.63

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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.