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Finding the Fourth Proportional to 9,938.08, 13,710.63 and 7,105.51

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Solution

The fourth proportional to 9,938.08, 13,710.63 and 7,105.51 is: 9,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.08 : 13,710.63 = 7,105.51 : x
  2. Step 2: Convert to fraction form
    9,938.08/13,710.63 = 7,105.51/x
  3. Step 3: Cross multiply
    9,938.08x = 13,710.63 × 7,105.51
  4. Step 4: Simplify right side
    9,938.08x = 97,421,018.57
  5. Step 5: Solve for x
    x = 97,421,018.57/9,938.08
  6. Step 6: Final answer
    x = 9,802.80

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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.