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Finding the Fourth Proportional to 11,345, 15,656.08 and 6,309.08

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Solution

The fourth proportional to 11,345, 15,656.08 and 6,309.08 is: 8,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345 : 15,656.08 = 6,309.08 : x
  2. Step 2: Convert to fraction form
    11,345/15,656.08 = 6,309.08/x
  3. Step 3: Cross multiply
    11,345x = 15,656.08 × 6,309.08
  4. Step 4: Simplify right side
    11,345x = 98,775,461.21
  5. Step 5: Solve for x
    x = 98,775,461.21/11,345
  6. Step 6: Final answer
    x = 8,706.52

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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.