Home / 19,513.02-26,931-12,818.04

Finding the Fourth Proportional to 19,513.02, 26,931 and 12,818.04

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Solution

The fourth proportional to 19,513.02, 26,931 and 12,818.04 is: 17,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513.02 : 26,931 = 12,818.04 : x
  2. Step 2: Convert to fraction form
    19,513.02/26,931 = 12,818.04/x
  3. Step 3: Cross multiply
    19,513.02x = 26,931 × 12,818.04
  4. Step 4: Simplify right side
    19,513.02x = 345,202,635.24
  5. Step 5: Solve for x
    x = 345,202,635.24/19,513.02
  6. Step 6: Final answer
    x = 17,690.89

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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.