Home / 26,520.16-39,781.72-8,750.12

Finding the Fourth Proportional to 26,520.16, 39,781.72 and 8,750.12

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Solution

The fourth proportional to 26,520.16, 39,781.72 and 8,750.12 is: 13,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,520.16 : 39,781.72 = 8,750.12 : x
  2. Step 2: Convert to fraction form
    26,520.16/39,781.72 = 8,750.12/x
  3. Step 3: Cross multiply
    26,520.16x = 39,781.72 × 8,750.12
  4. Step 4: Simplify right side
    26,520.16x = 348,094,823.81
  5. Step 5: Solve for x
    x = 348,094,823.81/26,520.16
  6. Step 6: Final answer
    x = 13,125.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.