Home / 13,557.65-18,707.27-7,589.16

Finding the Fourth Proportional to 13,557.65, 18,707.27 and 7,589.16

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Solution

The fourth proportional to 13,557.65, 18,707.27 and 7,589.16 is: 10,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.65 : 18,707.27 = 7,589.16 : x
  2. Step 2: Convert to fraction form
    13,557.65/18,707.27 = 7,589.16/x
  3. Step 3: Cross multiply
    13,557.65x = 18,707.27 × 7,589.16
  4. Step 4: Simplify right side
    13,557.65x = 141,972,427.25
  5. Step 5: Solve for x
    x = 141,972,427.25/13,557.65
  6. Step 6: Final answer
    x = 10,471.76

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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.