Home / 13,717.16-18,929.66-7,429.53

Finding the Fourth Proportional to 13,717.16, 18,929.66 and 7,429.53

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Solution

The fourth proportional to 13,717.16, 18,929.66 and 7,429.53 is: 10,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.16 : 18,929.66 = 7,429.53 : x
  2. Step 2: Convert to fraction form
    13,717.16/18,929.66 = 7,429.53/x
  3. Step 3: Cross multiply
    13,717.16x = 18,929.66 × 7,429.53
  4. Step 4: Simplify right side
    13,717.16x = 140,638,439.71
  5. Step 5: Solve for x
    x = 140,638,439.71/13,717.16
  6. Step 6: Final answer
    x = 10,252.74

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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.