Home / 13,440.18-20,168.36-4,681.25

Finding the Fourth Proportional to 13,440.18, 20,168.36 and 4,681.25

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Solution

The fourth proportional to 13,440.18, 20,168.36 and 4,681.25 is: 7,024.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.18 : 20,168.36 = 4,681.25 : x
  2. Step 2: Convert to fraction form
    13,440.18/20,168.36 = 4,681.25/x
  3. Step 3: Cross multiply
    13,440.18x = 20,168.36 × 4,681.25
  4. Step 4: Simplify right side
    13,440.18x = 94,413,011.00
  5. Step 5: Solve for x
    x = 94,413,011.00/13,440.18
  6. Step 6: Final answer
    x = 7,024.68

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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.