Home / 19,445.17-26,813.13-13,146.61

Finding the Fourth Proportional to 19,445.17, 26,813.13 and 13,146.61

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Solution

The fourth proportional to 19,445.17, 26,813.13 and 13,146.61 is: 18,127.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.17 : 26,813.13 = 13,146.61 : x
  2. Step 2: Convert to fraction form
    19,445.17/26,813.13 = 13,146.61/x
  3. Step 3: Cross multiply
    19,445.17x = 26,813.13 × 13,146.61
  4. Step 4: Simplify right side
    19,445.17x = 352,501,762.99
  5. Step 5: Solve for x
    x = 352,501,762.99/19,445.17
  6. Step 6: Final answer
    x = 18,127.99

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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.