Home / 10,489.29-14,476.64-9,603.51

Finding the Fourth Proportional to 10,489.29, 14,476.64 and 9,603.51

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Solution

The fourth proportional to 10,489.29, 14,476.64 and 9,603.51 is: 13,254.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.29 : 14,476.64 = 9,603.51 : x
  2. Step 2: Convert to fraction form
    10,489.29/14,476.64 = 9,603.51/x
  3. Step 3: Cross multiply
    10,489.29x = 14,476.64 × 9,603.51
  4. Step 4: Simplify right side
    10,489.29x = 139,026,508.99
  5. Step 5: Solve for x
    x = 139,026,508.99/10,489.29
  6. Step 6: Final answer
    x = 13,254.14

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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.