Home / 13,557.12-18,707.52-7,588.32

Finding the Fourth Proportional to 13,557.12, 18,707.52 and 7,588.32

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Solution

The fourth proportional to 13,557.12, 18,707.52 and 7,588.32 is: 10,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.12 : 18,707.52 = 7,588.32 : x
  2. Step 2: Convert to fraction form
    13,557.12/18,707.52 = 7,588.32/x
  3. Step 3: Cross multiply
    13,557.12x = 18,707.52 × 7,588.32
  4. Step 4: Simplify right side
    13,557.12x = 141,958,648.17
  5. Step 5: Solve for x
    x = 141,958,648.17/13,557.12
  6. Step 6: Final answer
    x = 10,471.15

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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.