Home / 13,516.40-18,630.32-9,038.52

Finding the Fourth Proportional to 13,516.40, 18,630.32 and 9,038.52

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Solution

The fourth proportional to 13,516.40, 18,630.32 and 9,038.52 is: 12,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.40 : 18,630.32 = 9,038.52 : x
  2. Step 2: Convert to fraction form
    13,516.40/18,630.32 = 9,038.52/x
  3. Step 3: Cross multiply
    13,516.40x = 18,630.32 × 9,038.52
  4. Step 4: Simplify right side
    13,516.40x = 168,390,525.58
  5. Step 5: Solve for x
    x = 168,390,525.58/13,516.40
  6. Step 6: Final answer
    x = 12,458.24

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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.