Home / 9,903.51-13,665.24-6,129.18

Finding the Fourth Proportional to 9,903.51, 13,665.24 and 6,129.18

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Solution

The fourth proportional to 9,903.51, 13,665.24 and 6,129.18 is: 8,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.51 : 13,665.24 = 6,129.18 : x
  2. Step 2: Convert to fraction form
    9,903.51/13,665.24 = 6,129.18/x
  3. Step 3: Cross multiply
    9,903.51x = 13,665.24 × 6,129.18
  4. Step 4: Simplify right side
    9,903.51x = 83,756,715.70
  5. Step 5: Solve for x
    x = 83,756,715.70/9,903.51
  6. Step 6: Final answer
    x = 8,457.28

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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.