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Finding the Fourth Proportional to 7,117.29, 10,603.01 and 7,039.53

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Solution

The fourth proportional to 7,117.29, 10,603.01 and 7,039.53 is: 10,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.29 : 10,603.01 = 7,039.53 : x
  2. Step 2: Convert to fraction form
    7,117.29/10,603.01 = 7,039.53/x
  3. Step 3: Cross multiply
    7,117.29x = 10,603.01 × 7,039.53
  4. Step 4: Simplify right side
    7,117.29x = 74,640,224.58
  5. Step 5: Solve for x
    x = 74,640,224.58/7,117.29
  6. Step 6: Final answer
    x = 10,487.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.