Home / 13,529.64-18,648.60-9,051.78

Finding the Fourth Proportional to 13,529.64, 18,648.60 and 9,051.78

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Solution

The fourth proportional to 13,529.64, 18,648.60 and 9,051.78 is: 12,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.64 : 18,648.60 = 9,051.78 : x
  2. Step 2: Convert to fraction form
    13,529.64/18,648.60 = 9,051.78/x
  3. Step 3: Cross multiply
    13,529.64x = 18,648.60 × 9,051.78
  4. Step 4: Simplify right side
    13,529.64x = 168,803,024.51
  5. Step 5: Solve for x
    x = 168,803,024.51/13,529.64
  6. Step 6: Final answer
    x = 12,476.53

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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.