Home / 18,930.60-26,124.30-10,977.51

Finding the Fourth Proportional to 18,930.60, 26,124.30 and 10,977.51

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Solution

The fourth proportional to 18,930.60, 26,124.30 and 10,977.51 is: 15,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.60 : 26,124.30 = 10,977.51 : x
  2. Step 2: Convert to fraction form
    18,930.60/26,124.30 = 10,977.51/x
  3. Step 3: Cross multiply
    18,930.60x = 26,124.30 × 10,977.51
  4. Step 4: Simplify right side
    18,930.60x = 286,779,764.49
  5. Step 5: Solve for x
    x = 286,779,764.49/18,930.60
  6. Step 6: Final answer
    x = 15,149.01

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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.