Home / 19,360.75-26,703.21-13,402.39

Finding the Fourth Proportional to 19,360.75, 26,703.21 and 13,402.39

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Solution

The fourth proportional to 19,360.75, 26,703.21 and 13,402.39 is: 18,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.75 : 26,703.21 = 13,402.39 : x
  2. Step 2: Convert to fraction form
    19,360.75/26,703.21 = 13,402.39/x
  3. Step 3: Cross multiply
    19,360.75x = 26,703.21 × 13,402.39
  4. Step 4: Simplify right side
    19,360.75x = 357,886,834.67
  5. Step 5: Solve for x
    x = 357,886,834.67/19,360.75
  6. Step 6: Final answer
    x = 18,485.17

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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.