Home / 18,870.60-26,034.78-11,319.37

Finding the Fourth Proportional to 18,870.60, 26,034.78 and 11,319.37

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Solution

The fourth proportional to 18,870.60, 26,034.78 and 11,319.37 is: 15,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.60 : 26,034.78 = 11,319.37 : x
  2. Step 2: Convert to fraction form
    18,870.60/26,034.78 = 11,319.37/x
  3. Step 3: Cross multiply
    18,870.60x = 26,034.78 × 11,319.37
  4. Step 4: Simplify right side
    18,870.60x = 294,697,307.69
  5. Step 5: Solve for x
    x = 294,697,307.69/18,870.60
  6. Step 6: Final answer
    x = 15,616.74

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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.