Home / 18,927.95-26,120.25-10,430.91

Finding the Fourth Proportional to 18,927.95, 26,120.25 and 10,430.91

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Solution

The fourth proportional to 18,927.95, 26,120.25 and 10,430.91 is: 14,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.95 : 26,120.25 = 10,430.91 : x
  2. Step 2: Convert to fraction form
    18,927.95/26,120.25 = 10,430.91/x
  3. Step 3: Cross multiply
    18,927.95x = 26,120.25 × 10,430.91
  4. Step 4: Simplify right side
    18,927.95x = 272,457,976.93
  5. Step 5: Solve for x
    x = 272,457,976.93/18,927.95
  6. Step 6: Final answer
    x = 14,394.48

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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.