Home / 13,445.96-18,554.09-7,477.02

Finding the Fourth Proportional to 13,445.96, 18,554.09 and 7,477.02

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Solution

The fourth proportional to 13,445.96, 18,554.09 and 7,477.02 is: 10,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.96 : 18,554.09 = 7,477.02 : x
  2. Step 2: Convert to fraction form
    13,445.96/18,554.09 = 7,477.02/x
  3. Step 3: Cross multiply
    13,445.96x = 18,554.09 × 7,477.02
  4. Step 4: Simplify right side
    13,445.96x = 138,729,264.63
  5. Step 5: Solve for x
    x = 138,729,264.63/13,445.96
  6. Step 6: Final answer
    x = 10,317.55

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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.