Home / 13,230.18-18,258.60-8,746.16

Finding the Fourth Proportional to 13,230.18, 18,258.60 and 8,746.16

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Solution

The fourth proportional to 13,230.18, 18,258.60 and 8,746.16 is: 12,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.18 : 18,258.60 = 8,746.16 : x
  2. Step 2: Convert to fraction form
    13,230.18/18,258.60 = 8,746.16/x
  3. Step 3: Cross multiply
    13,230.18x = 18,258.60 × 8,746.16
  4. Step 4: Simplify right side
    13,230.18x = 159,692,636.98
  5. Step 5: Solve for x
    x = 159,692,636.98/13,230.18
  6. Step 6: Final answer
    x = 12,070.33

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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.