Home / 18,930.48-26,124.06-10,977.30

Finding the Fourth Proportional to 18,930.48, 26,124.06 and 10,977.30

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Solution

The fourth proportional to 18,930.48, 26,124.06 and 10,977.30 is: 15,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.48 : 26,124.06 = 10,977.30 : x
  2. Step 2: Convert to fraction form
    18,930.48/26,124.06 = 10,977.30/x
  3. Step 3: Cross multiply
    18,930.48x = 26,124.06 × 10,977.30
  4. Step 4: Simplify right side
    18,930.48x = 286,771,643.84
  5. Step 5: Solve for x
    x = 286,771,643.84/18,930.48
  6. Step 6: Final answer
    x = 15,148.67

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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.