Home / 12,312.24-18,466.80-4,520.40

Finding the Fourth Proportional to 12,312.24, 18,466.80 and 4,520.40

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Solution

The fourth proportional to 12,312.24, 18,466.80 and 4,520.40 is: 6,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.24 : 18,466.80 = 4,520.40 : x
  2. Step 2: Convert to fraction form
    12,312.24/18,466.80 = 4,520.40/x
  3. Step 3: Cross multiply
    12,312.24x = 18,466.80 × 4,520.40
  4. Step 4: Simplify right side
    12,312.24x = 83,477,322.72
  5. Step 5: Solve for x
    x = 83,477,322.72/12,312.24
  6. Step 6: Final answer
    x = 6,780.03

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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.