Home / 18,870.57-26,041.08-10,372.50

Finding the Fourth Proportional to 18,870.57, 26,041.08 and 10,372.50

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Solution

The fourth proportional to 18,870.57, 26,041.08 and 10,372.50 is: 14,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.57 : 26,041.08 = 10,372.50 : x
  2. Step 2: Convert to fraction form
    18,870.57/26,041.08 = 10,372.50/x
  3. Step 3: Cross multiply
    18,870.57x = 26,041.08 × 10,372.50
  4. Step 4: Simplify right side
    18,870.57x = 270,111,199.95
  5. Step 5: Solve for x
    x = 270,111,199.95/18,870.57
  6. Step 6: Final answer
    x = 14,313.89

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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.