Home / 14,782.81-22,182.63-5,421.58

Finding the Fourth Proportional to 14,782.81, 22,182.63 and 5,421.58

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Solution

The fourth proportional to 14,782.81, 22,182.63 and 5,421.58 is: 8,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.81 : 22,182.63 = 5,421.58 : x
  2. Step 2: Convert to fraction form
    14,782.81/22,182.63 = 5,421.58/x
  3. Step 3: Cross multiply
    14,782.81x = 22,182.63 × 5,421.58
  4. Step 4: Simplify right side
    14,782.81x = 120,264,903.16
  5. Step 5: Solve for x
    x = 120,264,903.16/14,782.81
  6. Step 6: Final answer
    x = 8,135.46

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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.