Home / 13,557.36-20,336.16-4,792.40

Finding the Fourth Proportional to 13,557.36, 20,336.16 and 4,792.40

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Solution

The fourth proportional to 13,557.36, 20,336.16 and 4,792.40 is: 7,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.36 : 20,336.16 = 4,792.40 : x
  2. Step 2: Convert to fraction form
    13,557.36/20,336.16 = 4,792.40/x
  3. Step 3: Cross multiply
    13,557.36x = 20,336.16 × 4,792.40
  4. Step 4: Simplify right side
    13,557.36x = 97,459,013.18
  5. Step 5: Solve for x
    x = 97,459,013.18/13,557.36
  6. Step 6: Final answer
    x = 7,188.64

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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.