Home / 13,283.12-18,330.17-7,613.93

Finding the Fourth Proportional to 13,283.12, 18,330.17 and 7,613.93

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Solution

The fourth proportional to 13,283.12, 18,330.17 and 7,613.93 is: 10,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.12 : 18,330.17 = 7,613.93 : x
  2. Step 2: Convert to fraction form
    13,283.12/18,330.17 = 7,613.93/x
  3. Step 3: Cross multiply
    13,283.12x = 18,330.17 × 7,613.93
  4. Step 4: Simplify right side
    13,283.12x = 139,564,639.02
  5. Step 5: Solve for x
    x = 139,564,639.02/13,283.12
  6. Step 6: Final answer
    x = 10,506.91

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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.