Home / 18,921.95-26,113.08-10,538.45

Finding the Fourth Proportional to 18,921.95, 26,113.08 and 10,538.45

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Solution

The fourth proportional to 18,921.95, 26,113.08 and 10,538.45 is: 14,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.95 : 26,113.08 = 10,538.45 : x
  2. Step 2: Convert to fraction form
    18,921.95/26,113.08 = 10,538.45/x
  3. Step 3: Cross multiply
    18,921.95x = 26,113.08 × 10,538.45
  4. Step 4: Simplify right side
    18,921.95x = 275,191,257.36
  5. Step 5: Solve for x
    x = 275,191,257.36/18,921.95
  6. Step 6: Final answer
    x = 14,543.50

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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.