Home / 11,345.22-15,655.32-10,509.30

Finding the Fourth Proportional to 11,345.22, 15,655.32 and 10,509.30

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Solution

The fourth proportional to 11,345.22, 15,655.32 and 10,509.30 is: 14,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.22 : 15,655.32 = 10,509.30 : x
  2. Step 2: Convert to fraction form
    11,345.22/15,655.32 = 10,509.30/x
  3. Step 3: Cross multiply
    11,345.22x = 15,655.32 × 10,509.30
  4. Step 4: Simplify right side
    11,345.22x = 164,526,454.48
  5. Step 5: Solve for x
    x = 164,526,454.48/11,345.22
  6. Step 6: Final answer
    x = 14,501.83

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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.