Home / 16,869.39-23,281.57-12,613.11

Finding the Fourth Proportional to 16,869.39, 23,281.57 and 12,613.11

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Solution

The fourth proportional to 16,869.39, 23,281.57 and 12,613.11 is: 17,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.39 : 23,281.57 = 12,613.11 : x
  2. Step 2: Convert to fraction form
    16,869.39/23,281.57 = 12,613.11/x
  3. Step 3: Cross multiply
    16,869.39x = 23,281.57 × 12,613.11
  4. Step 4: Simplify right side
    16,869.39x = 293,652,931.84
  5. Step 5: Solve for x
    x = 293,652,931.84/16,869.39
  6. Step 6: Final answer
    x = 17,407.45

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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.