Home / 13,315.23-19,984.59-7,760.93

Finding the Fourth Proportional to 13,315.23, 19,984.59 and 7,760.93

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Solution

The fourth proportional to 13,315.23, 19,984.59 and 7,760.93 is: 11,648.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.23 : 19,984.59 = 7,760.93 : x
  2. Step 2: Convert to fraction form
    13,315.23/19,984.59 = 7,760.93/x
  3. Step 3: Cross multiply
    13,315.23x = 19,984.59 × 7,760.93
  4. Step 4: Simplify right side
    13,315.23x = 155,098,904.15
  5. Step 5: Solve for x
    x = 155,098,904.15/13,315.23
  6. Step 6: Final answer
    x = 11,648.23

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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.