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Finding the Fourth Proportional to 12,730.83, 17,567.93 and 7,065.51

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Solution

The fourth proportional to 12,730.83, 17,567.93 and 7,065.51 is: 9,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.83 : 17,567.93 = 7,065.51 : x
  2. Step 2: Convert to fraction form
    12,730.83/17,567.93 = 7,065.51/x
  3. Step 3: Cross multiply
    12,730.83x = 17,567.93 × 7,065.51
  4. Step 4: Simplify right side
    12,730.83x = 124,126,349.77
  5. Step 5: Solve for x
    x = 124,126,349.77/12,730.83
  6. Step 6: Final answer
    x = 9,750.06

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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.