Home / 13,557.51-18,709.73-7,589.13

Finding the Fourth Proportional to 13,557.51, 18,709.73 and 7,589.13

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Solution

The fourth proportional to 13,557.51, 18,709.73 and 7,589.13 is: 10,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.51 : 18,709.73 = 7,589.13 : x
  2. Step 2: Convert to fraction form
    13,557.51/18,709.73 = 7,589.13/x
  3. Step 3: Cross multiply
    13,557.51x = 18,709.73 × 7,589.13
  4. Step 4: Simplify right side
    13,557.51x = 141,990,535.29
  5. Step 5: Solve for x
    x = 141,990,535.29/13,557.51
  6. Step 6: Final answer
    x = 10,473.20

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Double scale
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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.