Home / 15,688.21-23,393.92-13,510.93

Finding the Fourth Proportional to 15,688.21, 23,393.92 and 13,510.93

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Solution

The fourth proportional to 15,688.21, 23,393.92 and 13,510.93 is: 20,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.21 : 23,393.92 = 13,510.93 : x
  2. Step 2: Convert to fraction form
    15,688.21/23,393.92 = 13,510.93/x
  3. Step 3: Cross multiply
    15,688.21x = 23,393.92 × 13,510.93
  4. Step 4: Simplify right side
    15,688.21x = 316,073,615.55
  5. Step 5: Solve for x
    x = 316,073,615.55/15,688.21
  6. Step 6: Final answer
    x = 20,147.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.