Home / 19,185.60-26,465.76-13,206.72

Finding the Fourth Proportional to 19,185.60, 26,465.76 and 13,206.72

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Solution

The fourth proportional to 19,185.60, 26,465.76 and 13,206.72 is: 18,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.60 : 26,465.76 = 13,206.72 : x
  2. Step 2: Convert to fraction form
    19,185.60/26,465.76 = 13,206.72/x
  3. Step 3: Cross multiply
    19,185.60x = 26,465.76 × 13,206.72
  4. Step 4: Simplify right side
    19,185.60x = 349,525,881.91
  5. Step 5: Solve for x
    x = 349,525,881.91/19,185.60
  6. Step 6: Final answer
    x = 18,218.14

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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.