Home / 12,518.07-17,256.53-9,528.71

Finding the Fourth Proportional to 12,518.07, 17,256.53 and 9,528.71

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Solution

The fourth proportional to 12,518.07, 17,256.53 and 9,528.71 is: 13,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.07 : 17,256.53 = 9,528.71 : x
  2. Step 2: Convert to fraction form
    12,518.07/17,256.53 = 9,528.71/x
  3. Step 3: Cross multiply
    12,518.07x = 17,256.53 × 9,528.71
  4. Step 4: Simplify right side
    12,518.07x = 164,432,336.05
  5. Step 5: Solve for x
    x = 164,432,336.05/12,518.07
  6. Step 6: Final answer
    x = 13,135.60

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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.