Home / 18,909.24-26,085.78-14,688.60

Finding the Fourth Proportional to 18,909.24, 26,085.78 and 14,688.60

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Solution

The fourth proportional to 18,909.24, 26,085.78 and 14,688.60 is: 20,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.24 : 26,085.78 = 14,688.60 : x
  2. Step 2: Convert to fraction form
    18,909.24/26,085.78 = 14,688.60/x
  3. Step 3: Cross multiply
    18,909.24x = 26,085.78 × 14,688.60
  4. Step 4: Simplify right side
    18,909.24x = 383,163,588.11
  5. Step 5: Solve for x
    x = 383,163,588.11/18,909.24
  6. Step 6: Final answer
    x = 20,263.30

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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.