Home / 18,345.24-25,312.80-11,173.32

Finding the Fourth Proportional to 18,345.24, 25,312.80 and 11,173.32

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Solution

The fourth proportional to 18,345.24, 25,312.80 and 11,173.32 is: 15,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.24 : 25,312.80 = 11,173.32 : x
  2. Step 2: Convert to fraction form
    18,345.24/25,312.80 = 11,173.32/x
  3. Step 3: Cross multiply
    18,345.24x = 25,312.80 × 11,173.32
  4. Step 4: Simplify right side
    18,345.24x = 282,828,014.50
  5. Step 5: Solve for x
    x = 282,828,014.50/18,345.24
  6. Step 6: Final answer
    x = 15,416.97

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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.